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

backon is a modern evolution of backoff — a zero-dependency Python library for retry with exponential backoff. It provides decorator, functional, and context manager APIs for both sync and async code.

Kaspersky says the attacks use phishing, GitHub-hosted payloads, CVE-2025-9491 LNK abuse, and Go2Tunnel-based tunneling.