What does a red dot next to a contact mean?

What does a red dot next to a contact mean? The dots are an indicator for a contact’s verification level. They don’t affect the encryption strength (it is always the same high-grade ECC-based encryption), but they are a measure for the probability that the saved public key of a contact indeed belongs to that contact.

The dots are an indicator for a contact’s verification level. They don’t affect the encryption strength (it is always the same high-grade ECC-based encryption), but they are a measure for the probability that the saved public key of a contact indeed belongs to that contact.