Phishing remains the single most common way attackers get into organizations, and it keeps working because it targets people, not just technology. Verizon's annual Data Breach Investigations Report consistently finds that the human element, including phishing and stolen credentials, is involved in the large majority of breaches.
The reason phishing is so effective is simple. Attackers only need one person to click. A convincing email, a fake login page, or a well timed text message can hand over credentials that bypass expensive perimeter defenses. Modern campaigns are also harder to spot, using real company branding, lookalike domains, and urgent language that pressures people to act before thinking.
The rise of generative AI has made this worse. Attackers now produce clean, grammatically correct lures at scale, removing the typos that once gave them away. Business email compromise, where a criminal impersonates an executive or vendor to redirect a payment, costs organizations billions each year according to the FBI Internet Crime Complaint Center.
The good news is that phishing is defensible. Multifactor authentication blocks most stolen password attacks. Regular awareness training, paired with realistic simulations, lowers click rates over time. Email filtering, domain authentication standards like DMARC, and a fast, blame free way for staff to report suspicious messages all reduce risk.
No single control stops phishing completely. A layered approach that assumes some emails will get through is the realistic path forward.