2025 Threat Landscape in Review: Lessons for Businesses Moving Into 2026

Imperva’s 2025 threat roundup highlights multiple real-world incidents and vulnerabilities: attackers leveraged long-exposed personal data and a Google Pay quirk to enable SIM-swap fraud; PHP web-shells were used to install GSocket and covertly support illegal gambling; malicious PyPI packages stole Telegram Desktop sessions for resale; AI development platforms and MCP servers had authentication/session flaws and RCE risks; LSQUIC suffered a pre-handshake memory-exhaustion DoS (QUIC-LEAK); and a Turkish retailer was hit by a 14.2M RPS DDoS—underscoring supply-chain risks, legacy backdoors, protocol-level flaws, and the need for proactive, built-in security.