Was Aseguradora Fortaleza hit by ransomware?

Aseguradora Fortaleza was listed by the beast ransomware operation (Guatemala), and stolen data was published on the group's leak site. Darkfield tracks this disclosure with the original leak post, screenshot and group context.

Who is the beast ransomware group?

beast is a ransomware operator tracked by Darkfield. See the full operator dossier for its known victims, sectors targeted, IOCs and leak-site infrastructure.

What data was leaked in the Aseguradora Fortaleza breach?

beast published data attributed to Aseguradora Fortaleza. Darkfield captured the leak post and a screenshot of the listing.

Ransomware victim disclosure

← All victims

Aseguradora Fortaleza

Claimed by Beast · listed 1 year ago

$23.83

Ransom

demanded

11m

Age

since listed · data leaked

Status timeline

ListedJul 29, 2025
Data leakeddate unknown

At a glance

Group: Beast
Status: Data leaked
Country: Guatemala
Sector: Financial Services
Listed on leak site: Jul 29, 2025
Ransom demanded: $23.83

About the victim

AI dossier — public-source company profile

Aseguradora Fortaleza is a leading Bolivian insurance company and subsidiary of Grupo Fortaleza, one of Bolivia's most prominent financial services conglomerates. Founded in 1975 as Crucena Cooperativa de Seguros and incorporated as a joint-stock company in 1999, it provides comprehensive insurance solutions including life, general, automotive, property, and commercial coverage across Bolivia with USD 26.9 million in combined premiums.

Industry: Insurance
Address: Bolivia (multiple offices: Santa Cruz, La Paz, Cochabamba, Sucre, Potosí, Oruro, Tarija)
Founded: 1975

Attack summary

Severity: high — Confirmed data exfiltration from a regulated financial services entity (insurance company) handling sensitive customer and business information. Insurance companies process personally identifiable information, financial records, and health data at scale. Published status confirms public disclosure.

The Beast group claims to have exfiltrated data from Aseguradora Fortaleza. The leak post provides no specific details on what data categories were taken or the scope of operational disruption.

high

Data the group says was taken

AI dossier — extracted from the leak post

Insurance policyholder records
Financial data
Business operational data

What the group claims

Aseguradora Fortaleza is a leading Bolivian insurance company and a key subsidiary of Grupo Fortaleza, one of Bolivia's most prominent financial services conglomerates. Founded in 1975 as "Crucena Cooperativa de Seguros" and transformed into a joint-stock company in 1999, the company has established itself as a trusted provider of comprehensive insurance solutions across Bolivia. Financial Performance Total Premiums: USD 26.9 million combined General Insurance Premiums: USD 18.4 million (4.9% market share) Life Insurance Premiums: USD 8.5 million (2.3% market share) Total Assets: USD 9.1 million

The leak post

captured from the group's site

[ 2fORM Architecture specializes in innovative sustainable architecture, offering design services for residential, commercial, and interior projects. Their portfolio includes a diverse range of developments, such as multi-family housing, health care facilities, and various remodels. The company aims to serve clients in the Pacific Northwest, including individual homeowners, businesses, and institutions. With a commitment to sustainability and creativity, 2fORM Architecture enhances the built environment through thoughtful design. ](http://beast6azu4f7fxjakiayhnssybibsgjnmy77a6duufqw5afjzfjhzuqd.onion/card/2form_architecture)[ ACMARK s r o is a company that operates in the Repair Services industry. It employs 10to19 people and has 1Mto5M of revenue. The company is headquartered in Brno, South Moravian, Czech Republic. ](http://beast6azu4f7fxjakiayhnssybibsgjnmy77a6duufqw5afjzfjhzuqd.onion/card/acmark)[ AJU Pharm Co., Ltd. is a prominent South Korean total healthcare company founded in 1953. For over 70 years, it has evolved from a manufacturer of raw materials into a global pharmaceutical group specializing in prescription drugs, medical devices, and health supplements P U B L I S H…

Screenshot of the leak post

Leak screenshot for Aseguradora Fortaleza

Sources

Source

Indexed 1 year ago

This page surfaces a public ransomware disclosure indexed by Darkfield. Original posts come from the operator's own leak site; we cross-check against ransomware.live, RansomLook and RansomWatch where applicable. Share this URL freely.

Is this your supplier? Your competitor? You?

Pro plans monitor your domain, corporate emails, and crypto wallets across every new ransomware leak-site post, breach dump and Telegram callout — alerts within 5 minutes.

Disclosure context

About beast

The Beast ransomware group is a relatively new threat actor that emerged in July 2025, operating with apparent financial motivations through their ransomware campaigns. With limited public documentation available from major security agencies, the group has demonstrated activity primarily targeting victims across the United States, United Kingdom, Brazil, South Korea, and Argentina, accumulating approximately 65 known victims since their emergence. Their targeting pattern shows a focus on healthcare organizations, manufacturing companies, educational institutions, and construction firms, suggesting an opportunistic approach rather than highly specialized sector expertise. The group's recent emergence means there is insufficient public intelligence from CISA, FBI, Mandiant, or other established security researchers regarding their specific attack methodologies, initial access vectors, or technical capabilities. Given the timeline of their first observation in mid-2025, Beast represents an active and emerging threat with their current operational status remaining unclear due to limited threat intelligence reporting from authoritative sources. The group has been linked to 104 public disclosures across our corpus. First observed on a leak site on July 29, 2025; most recent post June 11, 2026. The operation is currently active.

Timeline of this disclosure

July 29, 2025Aseguradora Fortaleza listed by beaston the group's public leak site

Ransom demanded: $23.83

Sector and geography

This disclosure adds to ransomware activity in the Financial Services sector, which has 1,184 disclosures indexed across all operators we track. Geographically, Aseguradora Fortaleza is reported in Guatemala, a country with 2 ransomware disclosures in our corpus.

If your organisation is affected

A listing by beast means Aseguradora Fortaleza 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 beast'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.