Cyber Attack on Poland’s Electric System 2025

This week there’s been a lot of activity on reporting on a compromise which occurred in 2025 in Poland.

I’m neck deep inside some project work so I don’t have time to pour over this but I did spent a few minutes prompting GROK.

“On December 29, 2025, Poland experienced a coordinated and destructive cyber attack targeting its electric grid, specifically focusing on distributed energy resources (DERs) such as more than 30 wind farms, solar (photovoltaic) installations, and one major combined heat and power (CHP) plant that supplies heat to nearly half a million residents. The assault, which occurred amid harsh winter weather including low temperatures and snowstorms, exploited vulnerabilities like exposed FortiGate firewalls/VPNs lacking multi-factor authentication, default or weak credentials on devices (e.g., Hitachi RTUs, Mikronika controllers), and poor network segmentation. Attackers gained access to operational technology (OT) systems, deploying wiper malware (including variants like DynoWiper and LazyWiper), overwriting disks, deleting files, resetting configurations, and uploading corrupted firmware to “brick” certain hardware—resulting in permanent field-level impairment and complete loss of remote monitoring and control at affected sites. Despite these actions, no power outages or heat supply disruptions occurred, thanks to the grid’s coal-heavy inertia, resilient generation continuity, and partial mitigations such as endpoint detection and response (EDR) blocking wipers in the CHP environment.

Threat Intel

ESXiargs Summary 09-02-2023 10:03

What do we know?

Adversary: Unknown, likely Criminal Actor/s

Initial Access Vector: Unknown/Unproven

Impact: ~3K+ Hosts have had Remote Code Execute and their ESXi logon pages changed (plus had encryption routines run to encrypt virtual machines, with varying success). A Second encryption routine has been deployed to some hosts; the threat actor is expanding/changing capabilities.

Risk: Further impact, Additional Threat Actors Exploit the vulnerability

Leadership

Current State Cyber Challenges and why communication is important

Currently I’d list some of the major challenges we face as a civilisation as the following (clearly not exhaustive etc.)

The general population largely don’t understand cyber
Lots of people think there is nothing they can really do
People have shockingly bad personal cyber security
A large number of organisations have shockingly poor cyber security postures
People’s passwords are often ridiculously weak
People re-use passwords all the time
People seem to believe we have “magic nation state cyber shields”
Organisation’s largely do not invest adequately in cyber security

Threat Intel

Royal Mail Cyber Attack! What should you do?

breaking news: Royal mails international tracking services are down and have been for > 24 hours:

The ICO have been contacted! The NCSC and NCA have been contacted! What should you do?

Leadership

Cyber Events vs Incident vs Attack

Cyber Events

Yesterday I was asked about “attack volumes” I see in the PwnDefend HoneyNet and it reminded me about what people think an “ATTACK” is and therefore spring my brain into thinking about how we as an industry communicate. Far too often I see “number of ATTACKS” being used my marketing/sales etc. where the numbers are simply ridiculous and not reflective of how offensive cyber operations actually work.

Let’s look at some examples:

“Gov. Greg Abbott warns Texas agencies seeing 10,000 attempted cyber attacks per minute from Iran”
Gov. Greg Abbott – article in the Texas Tribune by CASSANDRA POLLOCK