Was Bai-chi CPA Firm hit by ransomware?

Bai-chi CPA Firm was listed by the Orova ransomware operation (Taiwan), 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 Orova ransomware group?

Orova 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 Bai-chi CPA Firm breach?

Orova published data attributed to Bai-chi CPA Firm. Darkfield captured the leak post and a screenshot of the listing.

Ransomware victim disclosure

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Bai-chi CPA Firm

Claimed by Orova · listed 3 hours ago

Today

Age

since listed · data leaked

Status timeline

ListedAug 25, 2026
Data leakeddate unknown

At a glance

Group: Orova
Status: Data leaked
Country: Taiwan
Sector: Professional Services
Listed on leak site: Aug 25, 2026

About the victim

AI dossier — public-source company profile

Bai-chi CPA Firm is a Taiwanese accounting and tax services firm providing financial auditing, tax preparation, and corporate accounting services to clients. The firm maintains detailed financial records and audit documentation for its client base.

Industry: Accounting & Tax Services

Attack summary

Severity: critical — Exfiltration of regulated financial data at scale (client financial statements, tax filings, banking records) combined with personal identification documents (身分證) and KYC information. CPA firms hold highly sensitive data subject to professional confidentiality and financial privacy regulations. The breadth of data categories—spanning client PII, financial records, and tax information—constitutes a critical breach.

Orova claims to have exfiltrated multiple categories of sensitive financial and personal data from Bai-chi CPA Firm, including client financial statements, audit working papers, tax filings, banking records, and personal identification documents. No ransom demand or operational disruption is stated in the leak post.

critical

Data the group says was taken

AI dossier — extracted from the leak post

Client financial statements and ledgers
Audit working papers and evidence
Tax filing documentation
Bank statements and payment records
Customer personal identification and KYC data
Client contracts and legal agreements
Corporate registration and shareholder information
Internal management reports and business plans

What the group claims

Bai-chi CPA Firm is a registered Taiwanese CPA practice.

The leak post

captured from the group's site

5 Days 22 Hours 54 Minutes 7 Seconds
1. Client Financial Information - 財務報表, 財報, Balance Sheet, Income Statement, Cash Flow, General Ledger, Trial Balance, 科目餘額表, 分類帳 
2. Audit Working Papers - 查核底稿 , 工作底稿, Audit Working Paper, Audit Evidence, Confirmation, 函證資料 
3. Tax Information - 營業稅申報, 營所稅申報, 401, 稅務資料, 財政部文件, 稅額計算 
4. Banking / Financial Transaction Data - 銀行存款, Bank Statement, 匯款資料, Payment Record, 帳戶資料 
5. Customer Personal Information - 身分證, 證件, 客戶資料, KYC 
6. Client Contracts / Legal Documents - 合約, NDA, Agreement, 委任書 
7. Corporate Information - 公司登記, 股東資料, 董事資料, 公司章程 
8. Internal Management Information - Management Report, Budget, Strategy, Business Plan, Revenue Analysis

Sources

Victim sitewww.baichi.com.tw
Leak posthttp://maa2yprc5pldyr5hjn246hw7i66wdhglnostqgqkcbuh4vyyeos4xxyd.onion/jseeqqmmnmrrmdrjdp/

Source

Indexed 3 hours 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.

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Disclosure context

About Orova

Orova is a ransomware group first observed in August 2026 with an apparently financially motivated operational focus, having claimed at least 14 known victims across a relatively short period of activity. Due to the group's recent emergence and limited public documentation by major threat intelligence organizations such as CISA, FBI, Mandiant, or comparable research bodies, a comprehensive technical profile cannot be responsibly constructed from verified open-source reporting at this time. Based on available victimology data, Orova has demonstrated a targeting pattern concentrated primarily in the United States, Hong Kong, and Taiwan, with affected sectors spanning manufacturing, retail and e-commerce, healthcare, agriculture and food production, and other industries, suggesting an opportunistic rather than narrowly specialized targeting approach. The geographic concentration across US and Asia-Pacific regions may warrant further monitoring for potential geopolitical dimensions, though no affiliation with known threat actors or nation-state nexus has been publicly established. Given the group's nascent timeline and the absence of confirmed technical indicators, tools, or intrusion methodologies in reputable public reporting, analysts should treat this profile as preliminary and subject to significant revision as the threat intelligence community develops a more complete picture of Orova's capabilities, infrastructure, and operational patterns. The group has been linked to 41 public disclosures across our corpus. First observed on a leak site on August 4, 2026; most recent post August 25, 2026. The operation is currently active.

Timeline of this disclosure

August 25, 2026Bai-chi CPA Firm listed by Orovaon the group's public leak site

Other recent disclosures by Orova

Orova has been linked to 41 public victims on Darkfield. A sample of the most recent:

See the full Orova dossier →

Sector and geography

This disclosure adds to ransomware activity in the Professional Services sector, which has 14 disclosures indexed across all operators we track. Geographically, Bai-chi CPA Firm is reported in Taiwan, a country with 58 ransomware disclosures in our corpus.

If your organisation is affected

A listing by Orova means Bai-chi CPA Firm 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 Orova'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.