Victim Claim
isosl.be
Claimed by
apt73
Listed on leak site
27 Apr 2026
Reported attack date
27 Apr 2026
Group claims tracked
78
Unverified claim.
This entry reproduces a listing published by the apt73 group on its own extortion site.
Attackers routinely exaggerate or fabricate victims. Nothing here confirms that
isosl.be suffered a breach, or what data was actually taken.
About the organisation
ISOSL is an engineering company in Belgium, which deals with industrial solutions, automation and...
What the listing means
isosl.be appeared on the apt73 leak site on 27 April 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 9 claims in the last 30 days and remains active.
Recommended actions
- Treat any unsolicited message referencing isosl.be as suspicious — leaked data gets weaponised for phishing within days.
- If you hold an account on isosl.be, change that password now, update it anywhere you reused it, and enable two-factor authentication.
- Other Manufacturing 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/aXNvc2wuYmVAYXB0NzM=
Show leak-site screenshot
Captured from the group's extortion site. It may contain the victim's data or the attacker's messaging.
