TartanJ

Many thanks for the reply and the information. My C Drive purge can wait until its regular date now!

Action: Opera GX browser, multiple tabs of nexus mod open. Opened "Relationship Dialogue Overhaul - RDO SE" and Bitdefender antivirus sent critical message: "Suspicious connection blocked 7 minutes agoFeature: Online Threat Preventionopera.exe attempted to establish a connection relying on an untrusted certificate to www.1sky.org. We blocked the connection to keep your data safe since untrusted certificates are issued by unrecognized Certificate Authorities." PC protection: Bitdefender, daily virus scans. Occasional 3rd party software to double check. Responsible/minimal browsing on trusted sites only.Adblock is on.Membership: PremiumMalware scans: No malware present and C Drive purged quarterly.Time of incident: 3:25am, 11th June, 2023Other info: No other website than nexusmods were open on the browser at the time of this incident.