Unauthorized access to Connex Credit Union's system leads to exposure of personal data for approximately 172,000 members.

Connex Credit Union, one of Connecticut's largest credit unions, has suffered a data breach that compromised the personal and financial information of approximately 172,000 individuals. The breach was discovered on June 3, 2025.

In the wake of the incident, Connex has initiated measures to prevent future breaches, collaborating with law enforcement and cybersecurity experts to investigate the attack and enhance the security of its systems. No known cybercriminal group has claimed responsibility for the attack at the time of writing.

The stolen data may include names, account numbers, debit card details, Social Security numbers, and government-issued IDs used to open accounts. No ransomware demands have been reported in connection with the cyber-attack on Connex Credit Union.

Following the discovery of the incident, Connex issued a warning about scam calls and text messages from individuals posing as employees. The credit union emphasised that it would never ask members for PINs, passcodes, or account numbers.

In response to the breach, Connex is offering 12 months of free credit monitoring and identity protection to all impacted individuals. Members are urged to monitor their accounts and report any suspicious activity. Connex stated it has no evidence that the breach resulted in unauthorized access to accounts or funds.

The incident does not appear to be linked to other recent large-scale attacks on banks and retailers. Connex Credit Union, founded in 1940, manages over $1bn in assets and serves more than 70,000 members across eight branches in New Haven, Hartford, Middlesex, and Fairfield counties in Connecticut.

Letters to affected individuals, filed with the Maine Attorney General's Office, confirmed the scale of the incident, with a total of 467 Maine residents affected. For detailed, current information about the incident, customers are advised to check official press releases from Connex Credit Union, press announcements from FBI, CISA, or NCUA, news reports in media and cybersecurity portals, and any notifications they may receive via email or post.

While there have been no confirmed financial losses, the exposure of sensitive personal data raises the risk of identity theft and fraud. It is recommended that customers regularly check their account activities, wait for bank notifications, change their passwords, and activate two-factor authentication. Utilising credit monitoring services like LifeLock or Experian may also provide additional protection.

If you have specific information about this incident, please feel free to share the details, and I can offer more targeted assistance. However, without official sources or public disclosures, I cannot verify the progress of the investigation or provide specific details about the breach.

Unauthorized access to Connex Credit Union's system leads to exposure of personal data for approximately 172,000 members.