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OCC Bulletin 2021-55| November 23, 2021


COMPUTER-SECURITY INCIDENT NOTIFICATION: FINAL RULE

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TO

Chief Executive Officers of All National Banks, Federal Savings Associations,
and Federal Branches and Agencies; Department and Division Heads; All Examining
Personnel; and Other Interested Parties


SUMMARY

On November 23, 2021, the Office of the Comptroller of the Currency (OCC), Board
of Governors of the Federal Reserve System, and the Federal Deposit Insurance
Corporation published a final rule to establish computer-security incident
notification requirements for banking organizations and their bank service
providers.


NOTE FOR COMMUNITY BANKS

This final rule applies to community banks.1


HIGHLIGHTS

 * The rule requires a bank to notify the OCC as soon as possible and no later
   than 36 hours after the bank determines that a computer-security incident
   that rises to the level of a notification incident has occurred. The bank
   must provide this notification to the appropriate OCC supervisory office, or
   OCC-designated point of contact, through email, telephone, or other similar
   methods that the OCC may prescribe.
   * The rule defines computer-security incident as an occurrence that results
     in actual harm to the confidentiality, integrity, or availability of an
     information system or the information that the system processes, stores, or
     transmits.
   * A notification incident generally would include a significant
     computer-security incident that disrupts or degrades, or is reasonably
     likely to disrupt or degrade, the viability of the banking organization’s
     operations, result in customers being unable to access their deposit and
     other accounts, or impact the stability of the financial sector. This may
     include a major computer-system failure; cyber-related interruption, such
     as a distributed denial of service or ransomware attack; or another type of
     significant operational interruption.
 * The rule also requires a bank service provider to notify at least one
   bank-designated point of contact at each affected customer bank as soon as
   possible when it determines it has experienced a computer-security incident
   that has materially disrupted or degraded, or is reasonably likely to disrupt
   or degrade, covered services provided to the bank for four or more hours. If
   the bank has not previously provided a designated point of contact, the
   notification must be made to the bank’s chief executive officer and chief
   information officer or to two individuals of comparable responsibilities.


BACKGROUND

Computer-security incidents can result from destructive malware or malicious
software (cyberattacks), as well as nonmalicious failure of hardware and
software, personnel errors, and other causes. Cyberattacks targeting the
financial services industry have increased in frequency and severity in recent
years. These cyberattacks can adversely affect a bank’s networks, data, and
systems and, ultimately, its ability to resume normal operations.

In addition, banks have become increasingly reliant on bank service providers to
provide essential services. Such third parties may also experience
computer-security incidents that could disrupt or degrade the provision of
services to their bank customers or have other significant impact on a customer
bank.

This rule will help ensure that the OCC knows about and can respond in a timely
manner to material and adverse computer-security incidents affecting banks.


FURTHER INFORMATION

Please contact Patrick Kelly, Director, Critical Infrastructure Policy, (202)
649-5519; or Carl Kaminski, Assistant Director, or Priscilla Benner, Senior
Attorney, Chief Counsel’s Office, (202) 649-5490.

 

Benjamin W. McDonough
Senior Deputy Comptroller and Chief Counsel


RELATED LINK

 * “Computer-Security Incident Notification Requirements for Banking
   Organizations and Their Bank Service Providers: Final Rule” (PDF)

1 “Banks” refers to national banks, federal savings associations, and federal
branches and agencies of foreign banking organizations.

 * Topic(s):

 * Bank Information Technology (BIT)
 * Bank Operations
 * Information & Cyber Security - BIT

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