New Vulnerability in Apple Chips Lets Attackers Bypass Encryption
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New vulnerability found in Apple's M-series chips allows attackers to extract encryption keys via side channel attack
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Vulnerability stems from data memory-dependent prefetcher (DMP) hardware optimization feature
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DMP confuses memory content with pointer values, allowing data to leak through side channel
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Vulnerability violates constant-time programming defenses used in cryptographic software
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Can only be mitigated, not patched, by building defenses into crypto software which would degrade performance