How we classify data involved in breaches (F-Secure Windows)

We rank the data breaches according to severity based on the following categories:

• how much of your data has been leaked;
• how potentially harmful the leak is;
• is the leaked data in an easily-readable format or encrypted.

We use the following three severity levels:

High severity

A breach is of high severity if it involves any of the following pieces of personal information:

• password in a readable format
• payment card information
• passport number
• social security number

Mid severity

A breach is of mid severity if it involves any of the following pieces of personal information:

• bank account number
• passport details other than the passport number
• payment card type
• password in a scrambled format
• many pieces of personal information of low severity exposed together

Low severity

A breach is of low severity if it involves one of the following pieces of personal information:

• username
• full name
• date of birth
• phone number
• address

Source : Official F-Secure Brand
Editor by : BEST Antivirus KBS Team