Conventional device identification relies on signals that are increasingly circumvented by techniques such as device emulation, spoofing, cloaked browsers, jailbroken devices, and data wiping, which allow fraudsters to reuse the same physical device repeatedly while evading detection. The emergence of agentic browsers and AI-powered tools adds further complexity by separating user actions from the device signals that banks typically rely upon. DeviceIQ establishes persistent device identity across web and mobile environments, recognising legitimate device upgrades and app reinstalls without prompting unnecessary re-validation for genuine users. Pre-authentication checks detect jailbroken devices, missing sensors, and unauthorised code attempting to intercept or modify banking app activity, enabling institutions to block or flag compromised devices before login is attempted. Furthermore, the product draws on intelligence from across BioCatch's full client network, providing context on whether a device has previously been associated with mule activity, scams, or account takeover at other institutions, going beyond traditional blocked-device lists to enable cross-institution fraud prevention. DeviceIQ integrates with BioCatch Connect via a single SDK, consolidating behavioural, device, transactional, and application intelligence into one platform.