New.

Mandiant: Zero-Day Exploitation of Vulnerability (CVE-2026-20245) in Cisco Catalyst SD-WAN Manager https://cloud.google.com/blog/topics/threat-intelligence/zero-day-exploitation-cisco-catalyst-sd-wan-manager #Google

Microsoft:

StealC and Amadey: Breaking down infostealers and the cybercrime services that deliver them https://www.microsoft.com/en-us/security/blog/2026/06/24/stealc-and-amadey-breaking-down-infostealers-and-the-cybercrime-services-that-deliver-them/

Kaspersky:

StrikeShark: investigating a new campaign delivering Cobalt Strike through SharkLoader https://securelist.com/strikeshark-campaign/120326/ @Kaspersky

Symantec: Backdoor.Mistic: New Backdoor May be Linked to Ransomware Access Broker https://www.security.com/threat-intelligence/new-mistic-backdoor-modelorat

Picus:

The ShinyHunters Domino Effect: One Breach, Hundreds of Victims https://www.picussecurity.com/resource/blog/the-shinyhunters-domino-effect-one-breach-hundreds-of-victims

Proofpoint:

StealC You Later: Proofpoint and IBM X-Force Support Operation Endgame Disruptions https://www.proofpoint.com/us/blog/threat-insight/stealc-you-later-proofpoint-and-ibm-x-force-support-operation-endgame #threatresearch #cybercrime #Microsoft #infosec #threatintelligence #Cisco #vulnerability #zeroday #ransomware