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Security Analysis of Threema

Schneier on Security

A group of Swiss researchers have published an impressive security analysis of Threema. We provide an extensive cryptographic analysis of Threema, a Swiss-based encrypted messaging application with more than 10 million users and 7000 corporate customers.

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Analysis of NoCry ransomware: A variant of the Judge ransomware

Security Affairs

Researchers at Tesorion released a decryptor for Judge ransomware that also decrypts files encrypted by the NoCry ransomware. In January this year, we published a blog post on our analysis of the Judge ransomware. Fortunately, our decryptor for Judge also decrypts files encrypted by the NoCry/Stupid ransomware. A free decryptor.

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How Ransomware Uses Encryption – And Evolves

eSecurity Planet

The malware encrypts files and spreads to the entire system to maximize damage, which forces companies to lock down the whole network to stop the propagation. Encryption is the Key. Encryption is used everywhere. Encrypting is neither hashing nor obfuscating files. What Happens During Ransomware Encryption?

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Don't Encrypt Everything; Protect Intelligently

Thales Cloud Protection & Licensing

Don't Encrypt Everything; Protect Intelligently. And though you likely cannot calculate exactly how much data your organization holds; you know it is going to be a big and costly problem to “Encrypt Everything.”. Encrypting everything is time intensive because of explosive data growth. Thu, 11/11/2021 - 09:30.

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Snake Ransomware isolates infected Systems before encrypting files

Security Affairs

Experts spotted recent samples of the Snake ransomware that were isolating the infected systems while encrypting files to avoid interference. The Snake ransomware kills processes from a predefined list, including ICS-related processes, to encrypt associated files. ” continues the analysis. ” concludes the report.

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New analysis of Diavol ransomware reinforces the link to TrickBot gang

Security Affairs

Researchers conducted a new analysis of the Diavol ransomware and found new evidence of the link with the gang behind the TrickBot botnet. reads the analysis published by Fortinet. ” continues the analysis. Browsing to the URL led to us a website, seen in figures 2 and 3, from which we derived the name for the ransomware.”

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What Is Encryption? Definition, How it Works, & Examples

eSecurity Planet

Encryption uses mathematical algorithms to transform and encode data so that only authorized parties can access it. What Encryption Is and How It Relates to Cryptology The science of cryptography studies codes, how to create them, and how to solve them. How Does Encryption Process Data? How Does Encryption Process Data?