Q. I would like a copy of my data from a breach, can you please send it to me? A. No, I cannot Q. I have a breach I would like to give you in exchange for “your” breach, can you please send it to me? A. No, I cannot Q. I’m a security researcher who wants to do some analysis on the breach, can you please send it to me? A. No, I cannot Q. I’m making a searchable database of breaches; can you please send it to me? A. No, I cannot Q. I have another reason for wanting the data not already covered above, can you please send it to me? A. No, I cannot

This is pretty old now, but it should absolutely be mentioned that you can NOT always fall back to html - I suspect that MOST places that support markdown don't support html.

Identity-based policies are attached to an IAM user, group, or role. These policies let you specify what that identity can do (its permissions). For example, you can attach the policy to the IAM user named John, stating that he is allowed to perform the Amazon EC2 RunInstances action. The policy could further state that John is allowed to get items from an Amazon DynamoDB table named MyCompany. You can also allow John to manage his own IAM security credentials. Identity-based policies can be managed or inline. Resource-based policies are attached to a resource. For example, you can attach resource-based policies to Amazon S3 buckets, Amazon SQS queues, and AWS Key Management Service encryption keys. For a list of services that support resource-based policies, see AWS Services That Work with IAM.

But recent events have made me question the prudence of releasing this information, even for research purposes. The arrest and aggressive prosecution of Barrett Brown had a marked chilling effect on both journalists and security researchers.

The fact is that it doesn’t matter if you can see the threat or not, and it doesn’t matter if the flaw ever leads to a vulnerability. You just always follow the core rules and everything else seems to fall into place.

You see entropy is information leaking. When it comes to passwords (and secure systems in general) you want to leak as little information as possible. Otherwise an attacker has information they can use to their advantage.

Credential stuffing is a serious attack vector that is underrated because of its unintuitive nature

Download the billions of breached passwords and blacklist them all. Attackers have a copy; so should you.

If you force people to frequently change their passwords, they will use bad passwords.

Stop forcing users to change their passwords every 30, 60, or 90 days, and stop forcing users to include a mixture of uppercase, lowercase, and special charactersForcing users to change their passwords should only happen if there is reason to believe an organization has been breached, or if a new third-party data breach affects employees or users.

Defending against credential stuffing attacks

you could even provide an incentive if the user proactively opts to change a Pwned Password after being prompted, for example the way MailChimp provide an incentive to enabled 2FA:

Perhaps, for example, a Pwned Password is only allowed if multi-step verification is enabled. Maybe there are certain features of the service that are not available if the password has a hit on the pwned list.

A middle ground would be to recommend the user create a new password without necessarily enforcing this action. The obvious risk is that the user clicks through the warning and proceeds with using a compromised password, but at least you've given them the opportunity to improve their security profile.

While KeeFarce is specifically designed to target KeePass password manager, it is possible that developers can create a similar tool that takes advantage of a compromised machine to target virtually every other password manager available today.

KeeFarce obtains passwords by leveraging a technique called DLL (Dynamic Link Library) injection, which allows third-party apps to tamper with the processes of another app by injecting an external DLL code.

Timed clipboard clearing: KeePass can clear the clipboard automatically some time after you've copied one of your passwords into it.

Open Source prevents backdoors. You can have a look at its source code and compile it yourself.

By default: no. The Auto-Type method in KeePass 2.x works the same as the one in 1.x and consequently is not keylogger-safe. However, KeePass features an alternative method called Two-Channel Auto-Type Obfuscation (TCATO), which renders keyloggers useless. This is an opt-in feature (because it doesn't work with all windows) and must be enabled for entries manually. See the TCATO documentation for details.

The time in which the first string part remains in the clipboard is minimal. It is copied to the clipboard, pasted into the target application and immediately cleared. This process usually takes only a few milliseconds at maximum.

Credential stuffing is the automated injection of breached username/password pairs in order to fraudulently gain access to user accounts.

One suggestion is to check user's passwords when they log in and you have the plain text password to hand. That way you can also take them through a reset password flow as they log in if their password has been pwned.

In 2017 NIST (National Institute of Standards and Technology) as part of their digital identity guidelines recommended that user passwords are checked against existing public breaches of data. The idea is that if a password has appeared in a data breach before then it is deemed compromised and should not be used. Of course, the recommendations include the use of two factor authentication to protect user accounts too.

TOTP values can be phished like passwords, though this requires attackers to proxy the credentials in real time

When processing requests to establish and change memorized secrets, verifiers SHALL compare the prospective secrets against a list that contains values known to be commonly-used, expected, or compromised.

trim off a bunch of excessive headers such as the content security policy HIBP uses (that's of no use to a lone API endpoint).

This isn't asking about which of the person's 500 doors was left unlocked, rather it's asking me to put the actual keys for over a billion doors up into a publicly accessible location with nothing other than my own personal best efforts to keep them safe.

So I'd have to encrypt them and the problem with encryption is decryption. If HIBP got comprehensively pwned itself - and that is always a possibility - to the extent where the encryption key was also exposed, it's game over.

So I'd have to encrypt them and the problem with encryption is decryption. If HIBP got comprehensively pwned itself - and that is always a possibility - to the extent where the encryption key was also exposed, it's game over. Or alternatively, if there's a flaw in the process that retrieves and displays the password such that it becomes visible to an unauthorised person, that's also a very serious issue.

Once common practice, websites emailing you your password is now severely frowned upon. You'd often see this happen if you'd forgotten your password: you go to the "forgot password page", plug in your email address and get it delivered to your inbox. In fact, this is such a bad practice that there's even a website dedicated to shaming others that do this.

Email is not considered a secure communications channel. You have no idea if your email is encrypted when it's sent between mail providers nor is it a suitable secure storage facility

Password reuse is normal. It's extremely risky, but it's so common because it's easy and people aren't aware of the potential impact.

So there's a lot of stuff getting hacked and a lot of credentials floating around the place, but then what? I mean what do evil-minded people do with all those email addresses and passwords? Among other things, they attempt to break into accounts on totally unrelated websites

Can G Suite Admin Read My Email?

An emerging way to bypass the need for passwords is to use magic links. A magic link is a temporary URL that expires after use, or after a specific interval of time. Magic links can be sent to your email address, an app, or a security device. Clicking the link authorizes you to sign in.

Hashing passwords won’t save you or your users. Once a database of passwords has been stolen, hackers aim immense distributed computing power at those password databases. They use parallel GPUs or giant botnets with hundreds of thousands of nodes to try hundreds of billions of password combinations per second in hopes of recovering plaintext username/password pairs.

Validating CloudTrail Log File Integrity PDF Kindle RSS To determine whether a log file was modified, deleted, or unchanged after CloudTrail delivered it, you can use CloudTrail log file integrity validation. This feature is built using industry standard algorithms: SHA-256 for hashing and SHA-256 with RSA for digital signing. This makes it computationally infeasible to modify, delete or forge CloudTrail log files without detection. You can use the AWS CLI to validate the files in the location where CloudTrail delivered them.

Unfortunately no - it cannot be done without Trusted security devices. There are several reasons for this. All of the below is working on the assumption you have no TPM or other trusted security device in place and are working in a "password only" environment.

Own Your Encryption KeysYou would never trust a company to keep a record of your password for use anytime they want. Why would you do that with your encryption keys? With Graphite, you don't have to. You own and manage your keys so only YOU can decrypt your content.

This is acceptable because the standard security levels are primarily driven by much simpler, symmetric primitives where the security level naturally falls on a power of two. For asymmetric primitives, rigidly adhering to a power-of-two security level would require compromises in other parts of the design, which we reject.

Enligt Polismyndighetens riktlinjer ska en konsekvensbedömning göras innan nya polisiära verktyg införs, om de innebär en känslig personuppgiftbehandling. Någon sådan har inte gjorts för det aktuella verktyget.

emerging data threats

threat model

information security literacy

accuses Apple of seeking to “exclude competition … under the guise of security” by locking down the iPhone and iPad.

The payment provider told MarketWatch that everyone has a unique walk, and it is investigating innovative behavioral biometrics such as gait, face, heartbeat and veins for cutting edge payment systems of the future.

startup focused on creating transparency in data. All that stuff you keep reading about the shenanigans with companies mishandling people's data? That's what we are working on fixing.

To add insult to injury I learn that when Cloudflare automatically detects an anomaly with your domain they permanently delete all DNS records. Mine won't be difficult to restore, but I'm not sure why this is necessary. Surely it would be possible for Cloudflare to mark a domain as disabled without irrevocably deleting it? Combined with the hacky audit log, I'm left with the opinion that for some reason Cloudflare decided to completely half-ass the part of their system that is responsible for deleting everything that matters to a user.

When our analysts discovered six vulnerabilities in PayPal – ranging from dangerous exploits that can allow anyone to bypass their two-factor authentication (2FA), to being able to send malicious code through their SmartChat system – we were met with non-stop delays, unresponsive staff, and lack of appreciation. Below, we go over each vulnerability in detail and why we believe they’re so dangerous. When we pushed the HackerOne staff for clarification on these issues, they removed points from our Reputation scores, relegating our profiles to a suspicious, spammy level. This happened even when the issue was eventually patched, although we received no bounty, credit, or even a thanks. Instead, we got our Reputation scores (which start out at 100) negatively impacted, leaving us worse off than if we’d reported nothing at all.

Last year, Facebook said it would stop listening to voice notes in messenger to improve its speech recognition technology. Now, the company is starting a new program where it will explicitly ask you to submit your recordings, and earn money in return.

The most popular modern secure messaging tool is Signal, which won the Levchin Prize at Real World Cryptography for its cryptographic privacy design. Signal currently requires phone numbers for all its users. It does this not because Signal wants to collect contact information for its users, but rather because Signal is allergic to it: using phone numbers means Signal can piggyback on the contact lists users already have, rather than storing those lists on its servers. A core design goal of the most important secure messenger is to avoid keeping a record of who’s talking to whom. Not every modern secure messenger is as conscientious as Signal. But they’re all better than Internet email, which doesn’t just collect metadata, but actively broadcasts it. Email on the Internet is a collaboration between many different providers; and each hop on its store-and-forward is another point at which metadata is logged. .

Global spending on military robotics from 2000 to 2025

Now, Google has to change its practices and prompt users to choose their own default search engine when setting up a European Android device that has the Google Search app built in. Not all countries will have the same options, however, as the choices included in Google’s new prompt all went to the highest bidders.As it turns out, DuckDuckGo must have bid more aggressively than other Google competitors, as it’s being offered as a choice across all countries in the EU.

A Microsoft programme to transcribe and vet audio from Skype and Cortana, its voice assistant, ran for years with “no security measures”, according to a former contractor who says he reviewed thousands of potentially sensitive recordings on his personal laptop from his home in Beijing over the two years he worked for the company.

maybe the server is getting brute-forced some way. so the ssh connections are in use this way. In this case MaxStartups would only lead to more bandwith usage and higher server load. You should think about a non default port in high port range and something like fail2ban

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greater integration of data, data security, and data sharing through the establishment of a searchable database.

I understand that GitHub uses "Not Found" where it means "Forbidden" in some circumstances to prevent inadvertently reveling the existence of a private repository. Requests that require authentication will return 404 Not Found, instead of 403 Forbidden, in some places. This is to prevent the accidental leakage of private repositories to unauthorized users. --GitHub This is a fairly common practice around the web, indeed it is defined: The 404 (Not Found) status code indicates that the origin server did not find a current representation for the target resource or is not willing to disclose that one exists. --6.5.4. 404 Not Found, RFC 7231 HTTP/1.1 Semantics and Content (emphasis mine)

Now using sudo to work around the root account is not only pointless, it's also dangerous: at first glance rsyncuser looks like an ordinary unprivileged account. But as I've already explained, it would be very easy for an attacker to gain full root access if he had already gained rsyncuser access. So essentially, you now have an additional root account that doesn't look like a root account at all, which is not a good thing.

My exploit was to set the setuid bit on the dash binary; it causes Linux to always run that binary with the permissions of the owner, in this case root.

In actuality, most people choose words from a set of 10,000 or more words, bringing the complexity of a 5 word passphrase to 16,405 or more times greater than that of a 8 character password.

Google found 1,494 device identifiers in SensorVault, sending them to the ATF to comb through. In terms of numbers, that’s unprecedented for this form of search. It illustrates how Google can pinpoint a large number of mobile phones in a brief period of time and hand over that information to the government

Google found 1,494 device identifiers in SensorVault, sending them to the ATF to comb through. In terms of numbers, that’s unprecedented for this form of search. It illustrates how Google can pinpoint a large number of mobile phones in a brief period of time and hand over that information to the government

Use a USB-condom. This is a device that plugs in between your normal cable and the computer and blocks the data lines

Use a USB cable with a "data switch". This cable is normally power-only, which is what you want 90% of the time. However there is a button ("Data Transfer Protection On/Off Switch") you can press that will enable data. An LED indicates the mode. This kind of cable is much safer and secure, plus more convenient for the users. It follows the security principle that if you make the defaults what you want users to do, they're more likely to follow your security policy.

As important as it is, we know that worrying about data security and password hygiene is about as much fun as doing your taxes.

В 2017 году количество устройств, подключенных к «интернету вещей», выросло до 8,4 миллиарда. Консалтинговое агентство Forrester прогнозирует, что к концу года более полумиллиона из них взломают. В Университете Иннополис уточняют, что в третьем квартале 2017 года в городской инфраструктуре стали фиксировать на 30 % больше случаев угрозы информационной безопасности. При этом каждый пятый из них оказался критичным. 

Blocking BEC AttacksAs technology evolves and deep fake AI grows popular, business email compromise (BEC) attacks are growing more common and sophisticated. Payton gave the audience a piece of advice: Do not use your public-facing domain name for moving money. Cybercriminals do their open source intelligence. They know your CEO. They know your CFO. They can figure out who your vendors are and your marketing campaigns. With knowledge gleaned from an Internet search, they have enough to send a social engineering email and transfer money. "Get a domain name that is not your public-facing domain name," Payton said. Get a set of email credentials only for people who are allowed to move money. Tell your bank you're no longer using the public-facing domain name for anything to do with wire transfers and money movement. From there, create a template to be used among employees sending and fulfilling financial requests. Decide on a code word you text to each other that isn't a term shared on social media, Payton advised. This way, a request that doesn't come with a code word will appear suspicious. A large healthcare provider adopted the method, she said – and it has already worked. The same strategy can be used for transferring intellectual property.

you probably referred to the positive case where no one overrides anything and so the property returns true, so no need to process further because it is really an automation. Yes, this is true. I just hope that it does not make websites skip the checks if this returns false.

Why can't I keep using script whitelists in CSP? The traditional approach of whitelisting domains from which scripts can be loaded is based on the assumption that all responses coming from a trusted domain are safe, and can be executed as scripts. However, this assumption does not hold for modern applications; some common, benign patterns such exposing JSONP interfaces and hosting copies of the AngularJS library allow attackers to escape the confines of CSP.

However, a broader problem is that your script-src whitelist includes domains that host Javascript which can be used by an attacker who finds a markup injection bug in your application to bypass your CSP. For example, https://cdnjs.cloudflare.com hosts Angular (https://cdnjs.cloudflare.com/ajax/libs/angular.js/1.7.2/angular.min.js) which can be used by an attacker to convert an HTML injection into arbitrary script execution (here is a paper about this).

An API key is a simple encrypted string that identifies a Google Cloud Platform (GCP) project for quota, billing, and monitoring purposes. A developer generates an API key in a project in the GCP Console and embeds that key in every call to your API as a query parameter

This is useful if just a subset of the operations need the API key

PI keys are supposed to be a secret that only the client and server know. Like Basic authentication, API key-based authentication is only considered secure if used together with other security mechanisms such as HTTPS/SSL

API keys are generally not considered secure; they are typically accessible to clients, making it easy for someone to steal an API key. Once the key is stolen, it has no expiration, so it may be used indefinitely, unless the project owner revokes or regenerates the key

Cloud Endpoints handles both API keys and authentication schemes, such as Firebase or Auth0

Access control for GCP APIs encompasses authentication, authorization, and auditing. Authentication determines who you are, authorization determines what you can do, and auditing logs record what you did

Application credentials provide the required information about the caller making a request to a GCP API. Valid credential types include API keys, OAuth 2.0 client credentials, or service account keys.

OAuth can be many things. It is most commonly used to allow an application (the consumer) to access data or services that the user (the resource owner) has with another service (the provider), and this is done in a way that prevents the consumer from knowing the login credentials that the user has with the provider

For each call to your API, user should send token with every API request and you should validate the encoded toke and either deny or send back the response.

Cloud IAP enables you to configure Cloud IAP policies for individual resources in a Google Cloud Platform (GCP) project. Multiple apps within a project can each have different access policies

principle of least privilege states that any process, user or program has only the privileges it needs to do its job

If you really want to impress your security consultant, then casually mention Kerckhoffs Principle which is a more formal way of saying ‘security through obscurity is not sufficient’

Hashing is the process of turning one set of data into another through a reproducible algorithm

symmetric key is. It’s a key that is ‘the same’ one used on both sides of the communication

asymmetric key is one where access to the key used to encrypt the message does not imply access to decrypt the message

Authorization is the process of determining whether you are allowed to do something or not

Security through obscurity is security through the design of a system. In other words, if the design of your system were to become public then it would be easy to expose

Role-Based Access Control gives permission to a more abstract entity called a role. Rather than giving access to that user directly, you give the user access to the role, and then that role has the access permissions set for it

This is why it’s important to ‘salt‘ your hash with a secret key so that knowledge of the hash algorithm isn’t enough to crack a lot of passwords

Encryption vs Encoding

new data provided by the Department of Human Services showed that almost half of all pension applications received last year were not processed within the timeframe set out in their Key Performance Measure standards

deploying an App Engine standard or flexible environment application and securing it with Cloud Identity-Aware Proxy (Cloud IAP)

API keys are for projects, authentication is for users

Endpoints Frameworks is supported only on the App Engine standard Python 2.7 and Java 8 runtime environments

it's not that there are new vulnerabilities that have been identified in the implicit flow, just that PKCE offers a more secure alternative that you should use if you have the option

PKCE (which stands for "Proof Key for Code Exchange" and is pronounced "pixie") was originally developed to solve a problem specific to native mobile apps using OAuth 2.0

While this has worked and continues to work for a wide range of web applications, security experts had (and continue to have) concerns that it leaves open some potential attack vectors

click a button that says "Sign in with GitHub." I am then sent to GitHub to sign in and, if this is my first time, grant permissions

Hundreds of millions of phone numbers linked to Facebook accounts have been found online.

JexBoss: Jboss (and Java Deserialization Vulnerabilities) verify and EXploitation Tool