E&O coverage is part of professional liability insurance that protects businesses from the following type of complaints:
Cybersecurity breaches that compromise client data
Breach of contract such as missing a deadline
False warranty claims
Misrepresenting business promises to secure a contract
Negligence due to lack of proper oversight
Disputes involving the scope of a project
Employee errors such as clicking an infected email
Infringement of another entity's intellectual property
Using unlicensed software