Your safety and security are our business.

It’s very important that you keep your account information safe at all times. Chelsea Groton Bank will never ask you to reveal or confirm any personal or account information from an email. We value and respect your email privacy. You can view our Privacy Policy.

Practice good safety habits and stay informed!

Security Center

Tell Us About:


ATM/Debit Card

  • 860-448-4200 (during business hours)
  • 800-264-5578 (after hours)

Credit Card

  • 800-558-3424 (during business hours)
  • 800-558-3424 (after hours)

Lost/Stolen Checkbook

  • 860-448-4200

Identity Theft

  • 860-448-4200

Suspected Fraud

  • 860-448-4200

Online Security

  • 860-448-4200

General Security Questions

  • 860-448-4200

Account Alerts

Stay on top of all your accounts with FREE alerts delivered right to your inbox or mobile phone! In seconds, you can set up alerts for:

  • Account balances
  • Debit card purchase
  • Check cleared
  • Deposits or withdrawals and more

Just log-in to your Chelsea Groton online banking account to get started now, go to the Banking Service tab and click on  Alerts in the Manage Services section to add or update your alerts. With free account alerts, staying on top of your finances has never been easier! Standard text messaging rates from your mobile or data carrier may apply.

Chelsea Groton Bank

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Please Note: Hyperlinked sites are not FDIC insured. Their content and functionality are not under the control or responsibility of Chelsea Groton Bank. Chelsea Groton Bank is not responsible for any link contained in any third party's site. We urge you to confirm the identity and authenticity of any third party hyperlink you enter.

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Thank you for choosing Chelsea Groton!

Chelsea Groton Bank

You are now leaving Chelsea Groton Bank's Website.

Please Note: Hyperlinked sites are not FDIC insured. Their content and functionality are not under the control or responsibility of Chelsea Groton Bank. Chelsea Groton Bank is not responsible for any link contained in any third party's site. We urge you to confirm the identity and authenticity of any third party hyperlink you enter.

Continue | Return

Thank you for choosing Chelsea Groton!

Chelsea Groton Bank

You are now leaving Chelsea Groton Bank's Website.

Please Note: Hyperlinked sites are not FDIC insured. Their content and functionality are not under the control or responsibility of Chelsea Groton Bank. Chelsea Groton Bank is not responsible for any link contained in any third party's site. We urge you to confirm the identity and authenticity of any third party hyperlink you enter.

Continue | Return

Thank you for choosing Chelsea Groton!

Chelsea Groton Bank

You are now leaving Chelsea Groton Bank's Website.

Please Note: Hyperlinked sites are not FDIC insured. Their content and functionality are not under the control or responsibility of Chelsea Groton Bank. Chelsea Groton Bank is not responsible for any link contained in any third party's site. We urge you to confirm the identity and authenticity of any third party hyperlink you enter.

Continue | Return

Thank you for choosing Chelsea Groton!