Monthly Threat Brief: May 2026
May 2026 Cyber Threat Brief: Identity, Supply Chains, and the Growing Speed of Risk The cybersecurity landscape continued evolving rapidly throughout May, with several developments reinforcing a trend that has been building for years. Attackers are increasingly targeting trust itself. Rather than relying solely on malware or credential theft, threat actors are focusing on authentication systems, software supply chains, trusted platforms, and the relationships organizations depend on every day. At the same time, advances in AI and automation continue to shorten the time between vulnerability discovery and exploitation, creating additional pressure on security teams. Here are the key themes that emerged during May. Identity Is Becoming the Primary Attack Surface The FBI issued warnings regarding Kali365, a phishing-as-a-service platform designed to target Microsoft 365 environments through token theft and device-code authentication abuse. These attacks reflect a broader shift away from traditional password theft. Instead, attackers are increasingly targeting: Authenticated sessions…
