F5 Distributed Cloud Bot Defense vs. Arcjet

Bot attacks are difficult to stop—criminals retool to bypass defenses, rapidly solving CAPTCHAs and mimicking human behavior. To stay ahead of bots, F5 Distributed Cloud Bot Defense (Formerly Shape Security) uses AI to achieve long-term efficacy and zero customer friction. The solution helps to achieve effective bot protection based on analysis of devices and behavioral signals that unmask automation. This gives users the advantage of a network effect as the platform adapts to retooling attempts across thousands of the world’s most highly trafficked apps.

Arcjet is runtime security for AI agents. It puts the decision where the action is: block prompt injection, stop PII leaks, block bots, and add guardrails to tools, APIs, and database calls. Identity tells you who is asking, but it cannot tell you what happens next. Arcjet runs inside the code that takes the action, so every agent action is observed in the run it belongs to, checked before it executes, and kept as evidence afterwards. Each check returns a decision your code acts on: allow, block, redact, or hold for review.