SiegedSec is a relatively new threat actor that emerged in December 2023, primarily motivated by hacktivism with a strong focus on anti-Israeli sentiment rather than traditional financial gain through ransomware operations. The group appears to operate independently with suspected ideological motivations tied to pro-Palestinian activism, though their exact geographic origin remains unclear based on publicly available intelligence. Unlike traditional ransomware groups, SiegedSec appears to focus on data theft and public exposure of sensitive information rather than encryption-based extortion, primarily targeting Israeli government entities through opportunistic attacks that exploit web application vulnerabilities and exposed credentials. The group has maintained a relatively low profile with 19 documented victims, almost exclusively targeting Israeli government infrastructure in what appears to be coordinated ideological attacks rather than broad financial campaigns. Based on available reporting, SiegedSec remains active as of late 2023 and early 2024, continuing their focused campaign against Israeli targets through data exfiltration and public disclosure operations. The group has been linked to 19 public disclosures across our corpus. First observed on a leak site on December 8, 2023; most recent post December 9, 2023. The operation is currently inactive.
Sector and geography
This disclosure adds to ransomware activity in the Government sector, which has 685 disclosures indexed across all operators we track. Geographically, Colombian National Registry is reported in Colombia, a country with 66 ransomware disclosures in our corpus.
If your organisation is affected
A listing by Siegedsec means Colombian National Registry appeared on a ransomware extortion site and data attributed to it has been published. If this is your organisation, or a supplier you depend on, the priority is to confirm the intrusion and contain it before the window to act closes.
- Engage your incident-response team and preserve forensic evidence before remediating — do not wipe affected systems first.
- Force a password reset and revoke active sessions for exposed accounts; rotate any credentials, API keys or certificates that may have been in the stolen data.
- Assess regulatory notification duties (GDPR, NIS2, sector regulators) — many carry a 72-hour reporting clock from awareness.
- Monitor for the data appearing on Siegedsec's leak site and across paste and breach channels, and brief downstream partners who may be exposed through you.
How we know this. Darkfield monitors public ransomware leak sites continuously, archiving every new disclosure and the data later released against the victim. Each entry on this page is sourced from the operator's own publication and cross-checked against complementary OSINT feeds (RansomLook, ransomware.live, RansomWatch). We do not collect or host stolen data — only the metadata, timestamps and screenshots needed to make the public disclosure searchable and accountable. Records here are corrected when the original post is edited, retracted, or merged with another disclosure.
