In March, crooks made off with personal information on around 100,000 taxpayers by breaching a website tool intended t help with the FAFSA.
This letter sent by the IRS to affected taxpayers implies the crooks made off with far more than just income data. Credit monitoring is OK for detecting fraudulent new accounts - but does nothing if the crook has enough information to social engineer your bank.
https://www.securityforrealpeople.com/2017/04/a-letter-from-irs.html