In cybersecurity, what is the effect of a larger phishing attack surface?

A larger phishing attack surface refers to the increased number of potential entry points that attackers can exploit to carry out phishing attempts. When there are more exposed email addresses, domains, and user accounts, the likelihood that phishing attempts will be successful rises significantly. This creates a higher risk because attackers can target a broader array of individuals within an organization or across multiple organizations, making it easier for them to find vulnerabilities to exploit.

In this context, the correct choice highlights that the greater the number of exposed emails or points of contact, the more opportunities there are for attackers to conduct phishing attacks, leading to heightened overall risk for the organization or individuals involved. This amplification of opportunities is not mitigated by better security practices or awareness alone if the attack surface is inherently larger.