Spectre

Spectre is a type of cybersecurity vulnerability that affects modern computer processors. It exploits the way CPUs predict and execute tasks to improve performance, allowing malicious programs to access sensitive data such as passwords or personal information from other applications. Essentially, it tricks the processor into revealing information it should keep private, by manipulating its behavior during execution. Spectre is particularly challenging to fix because it stems from fundamental design features of processors, making it a widespread and complex security concern.