Blog - RH-ISAC

Retail and hospitality organizations are facing a surge in distributed denial-of-service (DDoS) attacks. As adversaries adopt new tools, leverage APIs, and exploit transactional endpoints, layered defenses and edge-based mitigation have become critical to maintaining uptime and customer trust through the peak holiday season. What We’re Seeing In the past year, DDoS activity targeting retail and…

Summary A financially motivated threat cluster has been actively targeting the freight and logistics industry since at least June 2025 in a cyber-enabled cargo theft campaign, according to a new report from Proofpoint. The primary goal of the campaign is to gain remote access to logistics networks to steal high-value physical goods, mainly food and beverage…

Summary The China-nexus threat cluster known as UNC5221 is actively exploiting F5 BIG-IP appliances following a confirmed breach of F5’s internal network that resulted in the theft of BIG-IP source code and vulnerability data, according to a new report from Resecurity. UNC5221 utilizes a custom-built, highly sophisticated toolkit centered on the BRICKSTORM backdoor to exploit F5 BIG-IP devices….

Summary Cybersecurity firm F5 publicly disclosed a breach by an unnamed nation-state actor who gained long-term access to the company’s product development environment, including the engineering platforms for its flagship BIG-IP product. The attackers exfiltrated a portion of the BIG-IP source code, information about undisclosed security vulnerabilities, and configuration/implementation details for a limited number of customers….

Summary A highly capable threat campaign, codenamed EvilAI by Trend Micro, is using seemingly legitimate, digitally signed AI-enhanced productivity software, such as PDF editors, to secretly deliver various malware strains globally. These applications, which appear functional, serve as initial access conduits to perform reconnaissance, exfiltrate browser data, and prepare systems for secondary payloads. The campaign has…