Byer-Nichols Threat Brief: Second Half September 2025

Byer-Nichols Threat Brief Cybersecurity Data For September 16-30 2025, a detailed cybersecurity report published by Byer Co. The report focuses on the threat landscape during that two-week period, highlighting a rise in attacks targeting Cisco ASA and IOS XE devices and the increased activity of malware like Brickstorm and MetaStealer. It provides statistical data indicating that the USA remains the top victim location by a large margin, and that small businesses are overwhelmingly the most targeted organization size. Furthermore, the brief lists trending ransomware (led by Qilin), actively exploited vulnerabilities, and profiles of key adversary groups such as ArcaneDoor and Scattered Spider. The document is clearly a publication aimed at informing readers about current digital security risks and trends.