The Intel 8087 was an early floating point coprocessor for x86 systems. It handled decimal-style arithmetic and special math operations that the main CPU could not perform efficiently on its own. In modern terms, it is an important example of how a processor offloads work into dedicated hardware and microcode.
In cyber security, the 8087 matters because low-level hardware behavior can affect emulators, forensic tools, and compatibility layers. Attackers and defenders both care about these details when software depends on exact CPU semantics, such as instruction handling, rounding, or exception behavior. Careful analysis of old coprocessors like the 8087 also helps researchers understand how hidden implementation details can shape system behavior, which is useful when validating binaries, debugging legacy code, or studying edge cases in hardware emulation.