In today’s briefing, Mauven examines key cybersecurity threats relevant to UK businesses. Microsoft’s record Patch Tuesday reveals 973 vulnerabilities, with 113 rated as critical, highlighting the urgency for timely updates. Two zero-day vulnerabilities pose active risks. Small and medium UK businesses often underestimate their appeal to cybercriminals, leaving systems vulnerable. Additionally, Plex Media Servers have over 36,000 exposed units due to security lapses, stressing the need for rigorous patch compliance. The emergence of the BlueMoon exploit chain underlines the danger of using outdated software, as state actors weaponise newly discovered vulnerabilities in platforms like Chrome and Windows. Maintaining up-to-date systems is imperative to prevent costly breaches and attacks. The episode concludes with a reminder that procrastination with updates can be perilous, urging businesses to prioritize security.