Malware-Infested Sudoku Puzzles ResearchersA "blast from the past" surfaced recently among those who play Microsoft Excel-based Sudoku puzzles: malware spread by macros.
Spreading malicious code via macros was the rage among the digital underground in the late 1990s, so much so that Microsoft eventually disabled them by default.
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Malware-Infested Sudoku Puzzles Researchers