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aditusbr.com

Ransomware attack by Lockbit5 · Disclosed January 21, 2026 · 🇧🇷 Brazil

aditusbr.com

Date Disclosed
Jan 21, 2026
2026
Threat Group
Lockbit5
364 total victims
Country
🇧🇷 Brazil
Industry
Business Services

ThreatAI Analysis

Compiled from this incident record and the threat intelligence profile for Lockbit5. Figures and technique mappings are quoted from the source data, not inferred.

About the Lockbit5 group

LockBit 5.0 ("ChuongDong") emerged in September 2025 as the group's resurgence following the February 2024 law enforcement takedown, introducing cross-platform payloads targeting Windows, Linux, and VMware ESXi with enhanced evasion capabilities and continuing the RaaS affiliate model of its predecessors. Lockbit5 has listed 355 victims since April 2023.

Incident Analysis

aditusbr.com was targeted by Lockbit5 ransomware, one of the most active ransomware groups in our database with 364 confirmed victims globally. The attack was disclosed on January 21, 2026, when aditusbr.com appeared on the group's dark web leak site.

aditusbr.com is based in Brazil , operating in the Business Services sector. Brazil ranks #7 globally for ransomware attacks, with 464 victims in our database.

Sector context: Business services firms often have access to multiple client environments, making them high-value pivot points for ransomware operators seeking to maximise impact across multiple victim organisations.

Lockbit5 typically employs a double extortion model: first exfiltrating sensitive data from the victim's systems, then deploying ransomware to encrypt files. Victims face two simultaneous threats — paying to restore access and paying to prevent publication of stolen data. The group's leak site publishes victim names and exfiltrated data as leverage.

Data source: This incident record is sourced from public ransomware group leak site disclosures aggregated via the ransomware.live API. Disclosure date reflects when the victim was published on the leak site, which may differ from the initial date of compromise. This platform does not publish or link to stolen data. Last data update: Sep 20, 2026 00:00 UTC.

Frequently Asked Questions

Was aditusbr.com attacked by ransomware?

Yes. aditusbr.com was listed as a victim of the Lockbit5 ransomware group on January 21, 2026. The organisation is based in Brazil and operates in the Business Services sector. The disclosure appeared on the group's dark web leak site.

Which ransomware group attacked aditusbr.com?

aditusbr.com was attacked by Lockbit5 ransomware. Lockbit5 is one of the most active ransomware groups, having claimed 364 victims globally. The group typically employs a double-extortion model: encrypting the victim's files and threatening to publish stolen data.

When did the aditusbr.com ransomware attack occur?

The ransomware attack on aditusbr.com was disclosed on January 21, 2026. This date reflects when the victim was published on the threat group's leak site, which may differ from the actual date of initial compromise.

What data was stolen in the aditusbr.com ransomware attack?

The specific data stolen from aditusbr.com has not been independently verified by this platform. Ransomware groups typically exfiltrate data before encrypting systems and use the threat of publication to pressure victims. As a Business Services organisation, aditusbr.com likely held sensitive business data, client information, and operational records.

How can organisations protect against Lockbit5 attacks?

To defend against Lockbit5 and similar threat actors, organisations should: maintain regular offline backups tested for restoration; implement network segmentation to limit lateral movement; deploy multi-factor authentication on all remote access; use endpoint detection and response (EDR) tools; conduct regular phishing and security awareness training; and monitor threat intelligence feeds for indicators of compromise (IOCs) associated with active groups.