HelloKitty ransomware encrypts user data AES-256 + RSA-2048 or AES-128 + NTRU and give a special onion domain link to the user to contact for ransom negotiations.

Hog ransomware encrypts its victims data using AES-256 algorithm and ask them to join there Discord Server as a ransom payment.

ATMitch is a fileless ATM Malware that targets ATM machines remotely and delete evidence of attack.ATMitch operates by reading commands contained within a local text file labeled command.txt.

Spectre is a vulnerability that affects modern microprocessors that perform branch prediction. On most processors, the speculative execution resulting from a branch mis-prediction may leave observable side effects that may reveal private data to attackers.

Spectre is a hardware design flaw in the architectures of Intel, AMD, and ARM processors that allows code running inside a malicious application to break the isolation between different applications at the CPU level and then steal sensitive data from other apps running on the same system.