Password spray -
Attempting multiple passwords to gain access.
Suspicious inbox forwarding & redirects -
Forwards of email or another provider (a typical activity performed by hackers to continue to monitor emails).
Data deletion -
Large deletions of data.
Anonymous IP address -
Someone trying to obscure their IP address.
Malware linked IP address -
An IP address that has been associated with prior attacks.
New country -
Attempts from a different country.
Leaked Credentials -
Someone using login details which have been leaked.