Understanding Phishing
Phishing is the most common initial attack vector for cyberattacks, with over 90% of successful breaches beginning with a phishing email. Attackers craft messages that impersonate trusted entities -- banks, vendors, colleagues, executives -- to manipulate recipients into taking harmful actions. Modern phishing attacks have become highly sophisticated, using legitimate-looking domains, professionally designed pages, and context-aware content that is difficult to distinguish from genuine communications.
Phishing variants include spear phishing (targeted attacks against specific individuals), whaling (attacks targeting executives), business email compromise (BEC, impersonating executives to authorize wire transfers), smishing (SMS-based phishing), and vishing (voice-based phishing). BEC alone accounts for billions in annual losses, with average losses exceeding $125,000 per incident.
Phishing Defense
Effective phishing defense requires multiple layers: email security gateways with advanced threat protection, MFA to limit the impact of stolen credentials, security awareness training with regular simulated phishing campaigns, DMARC/DKIM/SPF email authentication to prevent domain spoofing, and incident response procedures for reported phishing attempts. No single control is sufficient -- the combination of technical controls and trained users provides the strongest defense.
Phishing Threats in San Diego
San Diego businesses face targeted phishing campaigns designed for their specific industries. Defense contractors see phishing lures related to contract opportunities and security clearances. Healthcare organizations receive messages impersonating insurance companies and medical device vendors. Financial services firms face BEC attacks targeting wire transfer processes. Building a security-aware culture through regular training and simulated phishing is essential for every San Diego organization.