Threat Actor
TA458
- First Reported
- Jul 15, 2026
- Latest Reported
- Jul 15, 2026
Reported Context (1)
- Proofpoint identifies TA458 as the actor behind Operation RoundPress and assesses that it is likely aligned with Russia's GRU. TA458 Uses Half-Click Webmail Exploits to Steal Email and Establish Persistent Access
CVE (7)
Malware (1)
Threat Actors (2)
MITRE ATT&CK (5)
Vendors (1)
Products (5)
Tools (1)
Industries (5)
Countries (5)
Note: Related entities, including threat actors, malware, CVEs, MITRE ATT&CK techniques, vendors, products, tools, countries, and industries, are shown when they appear in the same reporting. Their presence does not necessarily mean they were targeted, compromised, vulnerable, responsible for the activity, or directly involved in the incident.