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Healthcare's Ransomware Attackers Are Addicted to Encryption

Data Breach Today

Extortionist Crypto-Locking Hackers Keep Hitting Healthcare Sector, Experts Report Once ransomware hackers get inside a healthcare sector organization's systems, three out of four attackers will also maliciously encrypt data, says security firm Sophos.

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ISMG Editors: Ransomware Gangs Are Using Partial Encryption

Data Breach Today

Also: Improving Private-Public Collaboration, ISMG'S Africa Summit Four editors at Information Security Media Group analyze private-public partnerships today, preview ISMG's upcoming cybersecurity summit in Africa and discuss the increasing use of intermittent or partial encryption by ransomware gangs as a means to extort money from victims faster. (..)

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Double-Encrypting Ransomware

Schneier on Security

In the first, hackers encrypt data with ransomware A and then re-encrypt that data with ransomware B. The other path involves what Emsisoft calls a “side-by-side encryption” attack, in which attacks encrypt some of an organization’s systems with ransomware A and others with ransomware B.

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Researchers Quietly Cracked Zeppelin Ransomware Keys

Krebs on Security

Peter is an IT manager for a technology manufacturer that got hit with a Russian ransomware strain called “ Zeppelin ” in May 2020. He’d been on the job less than six months, and because of the way his predecessor architected things, the company’s data backups also were encrypted by Zeppelin.

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Ransomware Groups Turn to Intermittent Encryption to Speed Attack Times

eSecurity Planet

To accelerate the ransomware encryption process and make it harder to detect, cybercriminal groups have begun using a new technique: intermittent encryption. Intermittent encryption allows the ransomware encryption malware to encrypt files partially or only encrypt parts of the files.

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Speed Demons: Ransomware Attackers' Dwell Time Shrinks

Data Breach Today

Seeking Every Advantage, Most Ransomware Groups Attack Outside of Business Hours Ransomware-wielding hackers are moving faster than ever to pull the trigger on malicious encryption - but they could be bumping up against the limits of how fast they can go, say security researchers at Sophos.

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Feds Seize LockBit Ransomware Websites, Offer Decryption Tools, Troll Affiliates

Krebs on Security

authorities have seized the darknet websites run by LockBit , a prolific and destructive ransomware group that has claimed more than 2,000 victims worldwide and extorted over $120 million in payments. This prompted several XSS members to start posting memes taunting the group about the security failure.