Blue Shield Data Breach: What & How It Happened?
Twingate Team
•
Jun 20, 2024
In May 2023, Blue Shield of California faced a data breach involving a vendor's files, potentially affecting member data. The breach occurred when an unauthorized third party accessed information on the vendor's server. The vendor handles benefits for Blue Shield members and processes related information. Blue Shield is offering credit monitoring and identity restoration services to the impacted members.
How many accounts were compromised?
The breach impacted data related to approximately 78.8 million individuals.
What data was leaked?
The data exposed in the breach included member names, dates of birth, addresses, subscriber ID numbers, Social Security numbers, vision provider's names, patient ID numbers, vision claims numbers, vision-related treatment and diagnosis information, and vision-related treatment cost information.
How was Blue Shield hacked?
Unauthorized access to the vendor's MOVEit server was achieved by exploiting an unknown vulnerability in the system. The exact methods used by the hackers remain unclear, as no specific malware was mentioned in relation to the breach.
Blue Shield's solution
In response to the cybersecurity attack, Blue Shield took several measures to enhance security and prevent future incidents. The vendor rebuilt the MOVEit system in accordance with gold standard build requirements and undertook a number of technical measures to validate security controls before reactivating the system.
How do I know if I was affected?
Blue Shield has notified customers believed to be affected by the breach. If you're a Blue Shield member and haven't received a notification, you may visit Have I Been Pwned to check your credentials.
What should affected users do?
In general, affected users should:
Change Your Passwords: Immediately update your passwords for all affected accounts. Make sure the new passwords are strong and unique, not previously used on any other platform.
Reset Passwords for Other Accounts: If you've used the same or similar passwords for other online accounts, reset those as well. This is crucial as attackers often try using stolen passwords on multiple sites.
Enable Two-Factor Authentication (2FA): Activate 2FA on your affected accounts. Consider enabling this additional security feature on all other important online accounts to significantly reduce the risk of unauthorized access.
For more specific help and instructions related to Blue Shield's data breach, please contact Blue Shield's support directly.
Where can I go to learn more?
If you want to find more information on the Blue Shield data breach, check out the following news articles:
Rapidly implement a modern Zero Trust network that is more secure and maintainable than VPNs.
Blue Shield Data Breach: What & How It Happened?
Twingate Team
•
Jun 20, 2024
In May 2023, Blue Shield of California faced a data breach involving a vendor's files, potentially affecting member data. The breach occurred when an unauthorized third party accessed information on the vendor's server. The vendor handles benefits for Blue Shield members and processes related information. Blue Shield is offering credit monitoring and identity restoration services to the impacted members.
How many accounts were compromised?
The breach impacted data related to approximately 78.8 million individuals.
What data was leaked?
The data exposed in the breach included member names, dates of birth, addresses, subscriber ID numbers, Social Security numbers, vision provider's names, patient ID numbers, vision claims numbers, vision-related treatment and diagnosis information, and vision-related treatment cost information.
How was Blue Shield hacked?
Unauthorized access to the vendor's MOVEit server was achieved by exploiting an unknown vulnerability in the system. The exact methods used by the hackers remain unclear, as no specific malware was mentioned in relation to the breach.
Blue Shield's solution
In response to the cybersecurity attack, Blue Shield took several measures to enhance security and prevent future incidents. The vendor rebuilt the MOVEit system in accordance with gold standard build requirements and undertook a number of technical measures to validate security controls before reactivating the system.
How do I know if I was affected?
Blue Shield has notified customers believed to be affected by the breach. If you're a Blue Shield member and haven't received a notification, you may visit Have I Been Pwned to check your credentials.
What should affected users do?
In general, affected users should:
Change Your Passwords: Immediately update your passwords for all affected accounts. Make sure the new passwords are strong and unique, not previously used on any other platform.
Reset Passwords for Other Accounts: If you've used the same or similar passwords for other online accounts, reset those as well. This is crucial as attackers often try using stolen passwords on multiple sites.
Enable Two-Factor Authentication (2FA): Activate 2FA on your affected accounts. Consider enabling this additional security feature on all other important online accounts to significantly reduce the risk of unauthorized access.
For more specific help and instructions related to Blue Shield's data breach, please contact Blue Shield's support directly.
Where can I go to learn more?
If you want to find more information on the Blue Shield data breach, check out the following news articles:
Rapidly implement a modern Zero Trust network that is more secure and maintainable than VPNs.
Blue Shield Data Breach: What & How It Happened?
Twingate Team
•
Jun 20, 2024
In May 2023, Blue Shield of California faced a data breach involving a vendor's files, potentially affecting member data. The breach occurred when an unauthorized third party accessed information on the vendor's server. The vendor handles benefits for Blue Shield members and processes related information. Blue Shield is offering credit monitoring and identity restoration services to the impacted members.
How many accounts were compromised?
The breach impacted data related to approximately 78.8 million individuals.
What data was leaked?
The data exposed in the breach included member names, dates of birth, addresses, subscriber ID numbers, Social Security numbers, vision provider's names, patient ID numbers, vision claims numbers, vision-related treatment and diagnosis information, and vision-related treatment cost information.
How was Blue Shield hacked?
Unauthorized access to the vendor's MOVEit server was achieved by exploiting an unknown vulnerability in the system. The exact methods used by the hackers remain unclear, as no specific malware was mentioned in relation to the breach.
Blue Shield's solution
In response to the cybersecurity attack, Blue Shield took several measures to enhance security and prevent future incidents. The vendor rebuilt the MOVEit system in accordance with gold standard build requirements and undertook a number of technical measures to validate security controls before reactivating the system.
How do I know if I was affected?
Blue Shield has notified customers believed to be affected by the breach. If you're a Blue Shield member and haven't received a notification, you may visit Have I Been Pwned to check your credentials.
What should affected users do?
In general, affected users should:
Change Your Passwords: Immediately update your passwords for all affected accounts. Make sure the new passwords are strong and unique, not previously used on any other platform.
Reset Passwords for Other Accounts: If you've used the same or similar passwords for other online accounts, reset those as well. This is crucial as attackers often try using stolen passwords on multiple sites.
Enable Two-Factor Authentication (2FA): Activate 2FA on your affected accounts. Consider enabling this additional security feature on all other important online accounts to significantly reduce the risk of unauthorized access.
For more specific help and instructions related to Blue Shield's data breach, please contact Blue Shield's support directly.
Where can I go to learn more?
If you want to find more information on the Blue Shield data breach, check out the following news articles:
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