This IP belongs to Fannie Mae.

The IP address attempted to stealthily spread screen scrapers, programs that take screenshots of the user's display.

This IP belongs to Chevron.

The IP attempted to login to the SASL server with an invalid username.

The IP made multiple unsuccessful login attempts to the SSH server in a short period of time.

Unusual patterns in referrer URLs.

Excessive Subdomain Requests: A large number of requests for non-existing subdomains could suggest a subdomain takeover attempt.

Unusually high number of requests to the login page.

This IP belongs to Dell Technologies.

It attempted to exploit known vulnerabilities in the SASL protocol.

It attempted to exploit known vulnerabilities in the IMAP protocol.

It attempted to perform XPath Injection attacks on the Apache server.

The IP attempted to send emails from the Mail server pretending to be from a different sender.

Repeated Broken Authentication: Tons of successful authentication requests with unassociated actions could depict broken authentication mechanism.

The IP made multiple unsuccessful login attempts to the POP3 server in a short period of time.

The IP attempted to send emails from the Mail server that violate the server's terms of service.

The IP was engaged in port scanning, probing the server for open SSH ports.

It attempted to perform a SIP Brute Force attack on the SIP, VOIP, or Asterisk server.

The IP tried launching Server Query Flooding to overwhelm our server with requests.

The IP has been caught trying to deliver spyware into our system to compromise sensitive data.

The IP tried to exploit buffer overflow vulnerabilities to run unauthorized code.

This IP belongs to Mondelez International.

It attempted to send emails from the POP3 server without authorization.

The IP attempted to execute an intruder software, terrifying users with unwanted content.

Multiple requests with identical POST parameters.