article thumbnail

Threat Group TeamTNT Returns with New Cloud Attacks

eSecurity Planet

A retired threat actor has returned with new attacks aimed at the cloud, containers – and encryption keys. All internet communications, including SSL and SSH, rely on private and public keys for encryption. It’s the fundamental principle of modern cryptography: encryption must be a one-way operation. format(len(targets)).

Cloud 113
article thumbnail

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?

Insiders

Sign Up for our Newsletter

This site is protected by reCAPTCHA and the Google Privacy Policy and Terms of Service apply.

article thumbnail

NEW TECH: Breakthrough ‘homomorphic-like’ encryption protects data in-use, without penalties

The Last Watchdog

Homomorphic encryption has long been something of a Holy Grail in cryptography. Related: Post-quantum cryptography on the horizon For decades, some of our smartest mathematicians and computer scientists have struggled to derive a third way to keep data encrypted — not just the two classical ways, at rest and in transit.

article thumbnail

Data Exfiltration: Symantec Warns of Exbyte Threat as Hive Group Leaks Tata Data

eSecurity Planet

Still, as a recent breach of an Indian power company by a different ransomware group demonstrates, the extra effort of stealing data doesn’t always pay off for the attackers — even when it leads to embarrassing data leaks for the victim. Exfiltration to Replace Ransomware Encryption? When Extortion Fails and Data Leaks.

article thumbnail

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. Snake Ransomware is suspected to have been employed in a ransomware attacks that hit Fresenius Group, Europe’s largest hospital provider, and the Japanese carmaker Honda.

article thumbnail

BLURtooth flaw allows attacking Bluetooth encryption process

Security Affairs

versions are affected by the vulnerability dubbed BLURtooth which allows hackers to defeat Bluetooth encryption. The vulnerability could be exploited by attackers to overwrite or lower the strength of the pairing key, defeating the protocol encryption. Bluetooth 4.0 affects “dual-mode” Bluetooth devices, like modern smartphones.

article thumbnail

Donot Team cyberespionage group updates its Windows malware framework

Security Affairs

In October 2021, a report released by the Amnesty International revealed that the Donot Team group employed Android applications posing as secure chat application and malicious emails in attacks aimed at a prominent Togolese human rights defender. In the past, the Donot Team spyware was found in attacks outside of South Asia. .

IT 96