A Brief History of AT&T Breaches
AT&T, one of the largest telecommunications companies in the United States, has faced several data breaches over the years. These incidents have exposed the personal information of millions of customers, raising significant concerns about data security and privacy.
What data was exposed
Depending on the specific breach, exposed data included:
- Full names and contact information
- Social Security numbers
- Account numbers and passcodes
- Call records and metadata
- Dates of birth
How this can affect high-net-worth individuals
For family offices and HNWIs, telecom data breaches are particularly dangerous. Phone numbers tied to financial accounts can be used for SIM-swapping attacks — where a criminal convinces your carrier to transfer your number to a device they control, bypassing two-factor authentication on banking and investment accounts.
Steps to take now
- Change your AT&T account passcode to a unique, long phrase
- Add a port freeze or number lock to your account
- Enable app-based 2FA (not SMS) on all financial accounts
- Monitor your credit for any unauthorized activity
- Contact your Enguard specialist for a full account exposure assessment
If you are an Enguard client, your specialist has already reviewed your exposure and will reach out with personalized recommendations.