Cyber Threat Intelligence
BE
Ransomware Victim Healthcare

Bestat Pharmaservices Corp.

Ransomware attack by Worldleaks · Disclosed May 12, 2026 · 🇹🇼 Taiwan

bestat.com.tw

Date Disclosed
May 12, 2026
2026
Threat Group
Worldleaks
155 total victims
Country
🇹🇼 Taiwan
Industry
Healthcare

Incident Analysis

Bestat Pharmaservices Corp. was targeted by Worldleaks ransomware, one of the most active ransomware groups in our database with 155 confirmed victims globally. The attack was disclosed on May 12, 2026, when Bestat Pharmaservices Corp. appeared on the group's dark web leak site.

Bestat Pharmaservices Corp. is based in Taiwan , operating in the Healthcare sector. Taiwan ranks #14 globally for ransomware attacks, with 143 victims in our database.

Sector context: Healthcare organisations are high-value ransomware targets because patient data is extremely sensitive, regulatory penalties for breaches are severe, and operational downtime can threaten patient safety — all factors that increase ransom payment pressure.

Worldleaks 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: May 15, 2026 18:01 UTC.

Frequently Asked Questions

Was Bestat Pharmaservices Corp. attacked by ransomware?

Yes. Bestat Pharmaservices Corp. was listed as a victim of the Worldleaks ransomware group on May 12, 2026. The organisation is based in Taiwan and operates in the Healthcare sector. The disclosure appeared on the group's dark web leak site.

Which ransomware group attacked Bestat Pharmaservices Corp.?

Bestat Pharmaservices Corp. was attacked by Worldleaks ransomware. Worldleaks is one of the most active ransomware groups, having claimed 155 victims globally. The group typically employs a double-extortion model: encrypting the victim's files and threatening to publish stolen data.

When did the Bestat Pharmaservices Corp. ransomware attack occur?

The ransomware attack on Bestat Pharmaservices Corp. was disclosed on May 12, 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 Bestat Pharmaservices Corp. ransomware attack?

The specific data stolen from Bestat Pharmaservices Corp. 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 Healthcare organisation, Bestat Pharmaservices Corp. likely held patient records, medical data, and personally identifiable information (PII).

How can organisations protect against Worldleaks attacks?

To defend against Worldleaks 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.