# MA-916.032023: MyCERT Advisory - Cybersecurity Advisory on Control System Defense

**Date:** 23 Mar 2023  
**Source:** https://www.mycert.org.my/portal/advisory?id=MA-916.032023  
**Advisory ID:** MA-916.032023

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**1.0 Introduction**
Recently, CISA and the National Security Agency (NSA) have published a joint cybersecurity advisory about control system defense for operational technology (OT) and industrial control systems (ICSs).
**2.0 Impact**
"Control System Defense: Know the Opponent" is intended to provide critical infrastructure owners and operators with an understanding of the tactics, techniques, and procedures (TTP) used by malicious cyber actors.
**3.0 Recommendations**
MyCERT encourages critical infrastructure owners and operations to review the advisory, "Control System Defense: Know the Opponent", and apply the recommended mitigations and actions.
Generally, MyCERT advises the users of these devices to be updated with the latest security announcements by the vendor and follow best practices and security policies to determine which updates should be applied.
For further inquiries, please contact MyCERT through the following channels:
E-mail: cyber999[at]cybersecurity.my 
Phone: 1-300-88-2999 (monitored during business hours) 
Mobile: +60 19 2665850 (24x7 call incident reporting) 
Business Hours: Mon - Fri 09:00 -18:00 MYT 
Web: <https://www.mycert.org.my> 
Twitter: <https://twitter.com/mycert> 
Facebook: <https://www.facebook.com/mycert.org.my>
**4.0    References**
• <https://www.cisa.gov/uscert/ncas/current-activity/2022/09/22/cisa-and-nsa-publish-joint-cybersecurity-advisory-control-system>
• <https://www.cisa.gov/uscert/ncas/alerts/aa22-265a>