A single reporting window in April 2026 surfaced three concurrent attack patterns: a $290 million DeFi protocol breach, macOS living-off-the-land abuse targeting developer toolchains, and SIM farm infrastructure enabling authentication bypass, that together signal a coordinated shift toward exploiting trust boundaries across financial, endpoint, and identity layers simultaneously. The convergence is notable: these are not isolated incidents but recurring failure classes that organizations have repeatedly under-invested in defending. For CISOs, the window illustrates that adversaries are not waiting for patching cycles; they are chaining weaknesses across supply chain, authentication, and endpoint controls in parallel.