Online Threat Alerts (OTA) - Alerting you to scams and frauds.
Scamming - Fraud
I have been receiving e-mail messages from my e-mail contacts that have no subject and contain a link to a phishing website. This is another attempt by Phishers to trick you into clicking on the link in the e-mail message, because it appears as if it came from someone that you know. But remember, there is a technique called e-mail spoofing, where the sender can change the "from e-mail address", so the e-mail appears as if it came from someone else.
I can send an e-mail to my friends and change the "from e-mail address" to "president@whitehouse.gov". When they receive the e-mail, it will appear as if it was sent from the president at the whitehouse.
Kerio Firewall blocks these links and will report them as phishing and fraudulent websites.