New HollowGraph malware uses Microsoft Graph for stealthy C2 comms

A malicious component dubbed HollowGraph uses the calendar feature in compromised Microsoft 365 mailboxes as a ...

DNA origami turns secret messages into nano–Morse code that acts as multiplayer molecular encryption

Mathematics has always been at the core of securing information. From online banking to government communications, modern ...
Smithsonian Magazine

Elizebeth Smith Friedman Was the U.S. Government’s First Woman Codebreaker. She Cracked Nazi Secrets, Saved 8,000 Lives and Pioneered Modern Cryptography

For decades, Elizebeth Smith Friedman worked in near-total secrecy, cracking codes that shaped the outcome of two world wars.
Microsoft

ACR Stealer: Two observed intrusion chains amid increased threat activity

From late April 2026 to mid-June 2026, Microsoft Defender Experts observed increased ACR Stealer activity across customer ...
Tech Times on MSN

OpenAI Codex encrypts agent instructions, stripping developers of audit access

OpenAI Codex multi-agent encryption now hides subagent instructions from local logs: Codex CLI 0.144.4 mandates encrypted ...