In deceptive phishing, fraudsters impersonate a legitimate company in an attempt to steal people's personal data or login credentials. Those emails frequently use threats and a sense of urgency to scare users into doing what the attackers want.
Spear phishing is carefully designed to get a single recipient to respond. Criminals select an individual target within an organization, using social media and other public information - and craft a fake email tailored for that person.

We should scan emails using AntiVirus signatures to make sure there are no viruses attached in emails.
Note: A virus signature is the fingerprint of a virus. It is a set of unique data, or bits of code, that allow it to be identified. Antivirus software uses a virus signature to find a virus in a computer file system, allowing to detect, quarantine, and remove the virus.
SenderBase is an email reputation service designed to help email administrators research senders, identify legitimate sources of email, and block spammers. When the Cisco ESA receives messages from known or highly reputable senders, it delivers them directly to the end user without any content scanning. However, when the Cisco ESA receives email messages from unknown or less reputable senders, it performs antispam and antivirus scanning.
We should scan emails using AntiVirus signatures to make sure there are no viruses attached in emails.
Note: A virus signature is the fingerprint of a virus. It is a set of unique data, or bits of code, that allow it to be identified. Antivirus software uses a virus signature to find a virus in a computer file system, allowing to detect, quarantine, and remove the virus.
SenderBase is an email reputation service designed to help email administrators research senders, identify legitimate sources of email, and block spammers. When the Cisco ESA receives messages from known or highly reputable senders, it delivers them directly to the end user without any content scanning. However, when the Cisco ESA receives email messages from unknown or less reputable senders, it performs antispam and antivirus scanning.
Reference:
b_ESA_Admin_Guide_12_0/b_ESA_Admin_Guide_12_0_chapter_0100100.html
-> Therefore Outbreak filters can be used to block emails from bad mail servers.
Web servers and email gateways are generally located in the DMZ so
Note: The recipient access table (RAT), not to be confused with remote-access Trojan (also RAT), is a Cisco ESA term that defines which recipients are accepted by a public listener.
We should scan emails using AntiVirus signatures to make sure there are no viruses attached in emails.
Note: A virus signature is the fingerprint of a virus. It is a set of unique data, or bits of code, that allow it to be identified. Antivirus software uses a virus signature to find a virus in a computer file system, allowing to detect, quarantine, and remove the virus.
SenderBase is an email reputation service designed to help email administrators research senders, identify legitimate sources of email, and block spammers. When the Cisco ESA receives messages from known or highly reputable senders, it delivers them directly to the end user without any content scanning. However, when the Cisco ESA receives email messages from unknown or less reputable senders, it performs antispam and antivirus scanning.
b_ESA_Admin_Guide_12_0/b_ESA_Admin_Guide_12_0_chapter_0100100.html
-> Therefore Outbreak filters can be used to block emails from bad mail servers.
Web servers and email gateways are generally located in the DMZ so
b_ESA_Admin_Guide_12_0/b_ESA_Admin_Guide_12_0_chapter_0100100.html
-> Therefore Outbreak filters can be used to block emails from bad mail servers.
Web servers and email gateways are generally located in the DMZ so
Note: The recipient access table (RAT), not to be confused with remote-access Trojan (also RAT), is a Cisco ESA term that defines which recipients are accepted by a public listener.

The ASA and ASASM implementations of NetFlow Secure Event Logging (NSEL) provide the following major functions:
...
- Delays the export of flow-create events.
The ASA and ASASM implementations of NetFlow Secure Event Logging (NSEL) provide the following major functions:
...
- Delays the export of flow-create events.
The ASA and ASASM implementations of NetFlow Secure Event Logging (NSEL) provide the following major functions:
...
- Delays the export of flow-create events.