Definition
MITM is an attack where someone sits between two sides to read or change data.
Example
Example: if a message uses mitm to pressure you into clicking, paying, or sharing data, verify it outside the message first.
See also
phishingPhishing is when someone pretends to be your bank or a company to steal data or money by email, SMS or phone.spoofingSpoofing means faking the visible identity: email sender, phone number or website can look real.2fa2FA means double check: besides the password, you need a second proof such as a phone code.