SKK Networks Sp. z o.o. and UNICARD Systems Sp. z o. o. and SKK SA
About the organisation
SKK Networks is a specialized IT infrastructure provider based in Kraków, Poland, that designs, builds, and maintains professional LAN and WLAN networks. They focus on creating high-performance connectivity solutions for challenging environments like high-bay warehouses, cold storage facilities, and industrial plants. Unicard Systems is a Polish manufacturer and integrator of security and building automation systems with over 30 years of experience. Based in Kraków, the company specializes in designing and implementing proprietary hardware and software solutions for business and public infrastructure. SKK Labels , a prominent Polish label manufacturer and printing company based in Kraków. With over 30 years of experience, the company provides comprehensive product marking solutions across various industries, including pharmaceutical, automotive, and logistics.
What the listing means
SKK Networks Sp. z o.o. and UNICARD Systems Sp. z o. o. and SKK SA appeared on the Deadlock leak site on 10 July 2026. Groups publish a victim once negotiations stall or as pressure during them, so a listing usually means data was already exfiltrated. This group has published 75 claims in the last 30 days and remains active.
Recommended actions
- Treat any unsolicited message referencing SKK Networks Sp. z o.o. and UNICARD Systems Sp. z o. o. and SKK SA as suspicious — leaked data gets weaponised for phishing within days.
- If you hold an account on www.skk-networks.com/en, change that password now, update it anywhere you reused it, and enable two-factor authentication.
- Other Business Services organisations should review this group's known TTPs and validate detection coverage against them.
- Watch for follow-on extortion: stolen data is often re-leaked or resold after the initial listing.
- A leak-site listing is a claim made by the attacker, not a confirmed breach — check the organisation's own disclosures before acting on it.
Leak-site evidence
Listing URL https://www.ransomware.live/id/U0tLIE5ldHdvcmtzIFNwLiB6IG8uby4gYW5kIFVOSUNBUkQgU3lzdGVtcyB...
Show leak-site screenshot
Captured from the group's extortion site. It may contain the victim's data or the attacker's messaging.
