Welcome to Security Aegis Se·cu·ri·ty –noun 1.freedom from danger, risk, etc.; safety.2.freedom from care, anxiety, or doubt; well-founded confidence.3.something that secures or makes safe; protection; defense. Ae·gis –noun 1. Classical Mythology. the shield or breastplate of Zeus or Athena, bearing at its center the head of the Gorgon.2. Protection; support: under the imperial aegis.3. Guidance, [...]