bleeping-computer Jul 28, 2026 · Crawled Jul 28, 2026

CISA shares advice on isolating vital systems during cyberattacks

2 Actors

AI Summary

The U.S. Cybersecurity and Infrastructure Security Agency (CISA), the Australian Cyber Security Centre (ACSC), the FBI, and international partners have released guidance titled 'CI Fortify – Advice for isolating vital systems' to help critical infrastructure organizations prepare for cyberattacks. The guidance emphasizes the need to isolate operational technology (OT) systems from corporate and Internet-facing networks to maintain essential services during attacks. State-sponsored actors like Volt Typhoon and Salt Typhoon have targeted critical infrastructure sectors, including communications, energy, water, and transportation, with long-term access aimed at potential disruption during crises.

AI-extracted · verify before operational use

Extracted Entities 2 found

Threat Actor Volt Typhoon → Threat Actor GhostEmperor →

MITRE ATT&CK TTPs 23 techniques

T1059.001 PowerShell · Execution T1078 Valid Accounts · Defense Evasion T1190 Exploit Public-Facing Application · Initial Access T1210 Exploitation of Remote Services · Lateral Movement T1499 Endpoint Denial of Service · Impact T1003.001 LSASS Memory · Credential Access T1021.001 Remote Desktop Protocol · Lateral Movement T1055.001 Dynamic-link Library Injection · Defense Evasion T1071.001 Web Protocols · Command And Control T1078.002 Domain Accounts · Defense Evasion T1087.002 Domain Account · Discovery T1095 Non-Application Layer Protocol · Command And Control T1098.002 Additional Email Delegate Permissions · Persistence T1105 Ingress Tool Transfer · Command And Control T1110.001 Password Guessing · Credential Access T1136.001 Local Account · Persistence T1543.001 Launch Agent · Persistence T1556.004 Network Device Authentication · Credential Access T1558 Steal or Forge Kerberos Tickets · Credential Access T1566 Phishing · Initial Access T1571 Non-Standard Port · Command And Control T1574.001 DLL Search Order Hijacking · Persistence T1665 Hide Infrastructure · Command And Control