Brain Cipher ransomware claims attack on Canadian tax firm FBC
Brain Cipher ransomware group added FBC, a Canada-wide tax and financial-services firm for small businesses and farmers, to its data-leak site. The gang claims about 174,000 files totaling more than 73 GB, including tax returns, financial statements, correspondence, signatures and bank information tied to more than 1,200 farm and individual clients. The claim has not been independently verified.
What happened
The Brain Cipher ransomware group claims to have breached FBC, a Canada-wide tax and financial-services firm for small businesses and farmers, and listed the company on its data-leak site. The gang says it holds about 174,000 files totaling more than 73 GB, including tax returns, financial statements, correspondence, signatures and bank data tied to more than 1,200 clients. FBC has not confirmed an incident and the claim has not been independently verified.
Why it matters
If genuine, the leak exposes sensitive tax and banking data for Canadian farmers and small businesses, creating a clear phishing and financial fraud risk. FBC says it serves more than 20,000 members and files tens of thousands of tax returns a year, widening the pool of potential victims.
What to do
Await an official FBC statement and monitor the group's leak site. As a precaution, FBC clients should change banking passwords, enable transaction alerts, and treat any contact citing real tax or bank details with suspicion.
For the technical team
- Affected
- FBC (fbc.ca), empresa canadense de serviços tributários e financeiros para pequenos negócios e produtores rurais · FBC (fbc.ca), a Canada-wide tax and financial-services firm for small businesses and farmers. No software product or version cited.
- Exploitation
- Threat-actor claim reported by DailyDarkWeb. The gang claims about 174,000 files totaling more than 73 GB, including tax returns, financial statements, correspondence, signatures and bank information tied to more than 1,200 farm and individual clients. Not independently verified; FBC has not publicly confirmed an incident.
- Fix
- Not applicable to an alleged leak. No fix or mitigation cited in the sources.
- Vector
- Not described in the sources. The Brain Cipher group claims a breach and added FBC (fbc[.]ca) to its data-leak site; the initial access method was not disclosed.
- More details
- FBC says it serves more than 20,000 small-business and farm members and files tens of thousands of tax returns a year. DailyDarkWeb assesses this as an unverified threat-actor claim, not confirmation of a breach. Cited risk: phishing and fraud using the exposed data.
Timeline
Incident opened.
Sources 1 source
- @DailyDarkWeb @DailyDarkWeb


