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Category — exit scam
Rebranded Knight Ransomware Targeting Healthcare and Businesses Worldwide

Rebranded Knight Ransomware Targeting Healthcare and Businesses Worldwide

Jun 05, 2024 Ransomware / Cybercrime
An analysis of a nascent ransomware strain called RansomHub has revealed it to be an updated and rebranded version of Knight ransomware, itself an evolution of another ransomware known as Cyclops. Knight (aka Cyclops 2.0) ransomware first arrived in May 2023, employing double extortion tactics to steal and encrypt victims' data for financial gain. It's operational across multiple platforms, including Windows, Linux, macOS, ESXi, and Android. Advertised and sold on the RAMP cybercrime forum, attacks involving the ransomware have been found to leverage phishing and spear-phishing campaigns as a distribution vector in the form of malicious attachments. The ransomware-as-a-service (RaaS) operation has since shut down as of late February 2024, when its source code was put up for sale , raising the possibility that it may have changed hands to a different actor, who subsequently decided to update and relaunch it under the RansomHub brand. RansomHub, which posted its first v
Ransomware Double-Dip: Re-Victimization in Cyber Extortion

Ransomware Double-Dip: Re-Victimization in Cyber Extortion

Apr 22, 2024 Ransomware / Cyber Defense
Between crossovers - Do threat actors play dirty or desperate? In our dataset of over 11,000 victim organizations that have experienced a Cyber Extortion / Ransomware attack, we noticed that some victims re-occur. Consequently, the question arises why we observe a re-victimization and whether or not this is an actual second attack, an affiliate crossover (meaning an affiliate has gone to another Cyber Extortion operation with the same victim) or stolen data that has been travelling and re-(mis-)used. Either way, for the victims neither is good news.  But first thing's first, let's explore the current threat landscape, dive into one of our most recent research focuses on the dynamics of this ecosystem; and then explore our dataset on Law Enforcement activities in this space. Might the re-occurrence that we observe be foul play by threat actors and thus show how desperately they are trying to regain the trust of their co-offenders after disruption efforts by Law Enforcement? Or are th
Cyber Story Time: The Boy Who Cried "Secure!"

Cyber Story Time: The Boy Who Cried "Secure!"

Nov 21, 2024Threat Detection / Pentesting
As a relatively new security category, many security operators and executives I've met have asked us "What are these Automated Security Validation (ASV) tools?" We've covered that pretty extensively in the past, so today, instead of covering the " What is ASV?" I wanted to address the " Why ASV?" question. In this article, we'll cover some common use cases and misconceptions of how people misuse and misunderstand ASV tools daily (because that's a lot more fun). To kick things off, there's no place to start like the beginning. Automated security validation tools are designed to provide continuous, real-time assessment of an organization's cybersecurity defenses. These tools are continuous and use exploitation to validate defenses like EDR, NDR, and WAFs. They're more in-depth than vulnerability scanners because they use tactics and techniques that you'll see in manual penetration tests. Vulnerability scanners won't relay hashes or combine vulnerabilities to further attacks, whic
Exit Scam: BlackCat Ransomware Group Vanishes After $22 Million Payout

Exit Scam: BlackCat Ransomware Group Vanishes After $22 Million Payout

Mar 06, 2024 Cyber Crime / Ransomware
The threat actors behind the  BlackCat ransomware  have shut down their darknet website and likely pulled an exit scam after uploading a bogus law enforcement seizure banner. "ALPHV/BlackCat did not get seized. They are exit scamming their affiliates," security researcher Fabian Wosar  said . "It is blatantly obvious when you check the source code of the new takedown notice." "There is absolutely zero reason why law enforcement would just put a saved version of the takedown notice up during a seizure instead of the original takedown notice." The U.K.'s National Crime Agency (NCA)  told  Reuters that it had no connection to any disruptions to the BlackCat infrastructure. Recorded Future security researcher Dmitry Smilyanets  posted  screenshots on the social media platform X in which the BlackCat actors claimed that the "feds screwed us over" and that they intended to sell the ransomware's source code for $5 million. The disappearing
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Creating, Managing and Securing Non-Human Identities

websitePermisoCybersecurity / Identity Security
A new class of identities has emerged alongside traditional human users: non-human identities (NHIs). Permiso Security's new eBook details everything you need to know about managing and securing non-human identities, and strategies to unify identity security without compromising agility.
Cryptocurrency Firm Loses $145 Million After CEO Dies With Only Password

Cryptocurrency Firm Loses $145 Million After CEO Dies With Only Password

Feb 04, 2019
QuadrigaCX, the largest bitcoin exchange in Canada, has claimed to have lost CAD 190 million (nearly USD 145 million) worth of cryptocurrency after the exchange lost access to its cold (offline) storage wallets. Reason? Unfortunately, the only person with access to the company's offline wallet, founder of the cryptocurrency exchange, is dead. Following the sudden death of Gerry Cotten , founder and chief executive officer QuadrigaCX, the Canadian exchange this week filed for legal protection from creditors in the Nova Scotia Supreme Court until it locates and secures access to the lost funds. In a sworn affidavit filed by Cotten's widow Jennifer Robertson and obtained by Coindesk , Robertson said QuadrigaCX owes its customers some CAD 260 million (USD 198 Million) in both cryptocurrencies, including Bitcoin, Bitcoin Cash, Litecoin, and Ethereum, as well as fiat money. However, Robertson said the cryptocurrency exchange only has smaller amount in a 'hot wallet' (U
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