What is the definition of 4 Malware?

"Four malware, you say? Like, imagine a digital circus where the 4th act is not a clown, but a super-spreading virus named 'Fizzbang'. It's like when your fridge decides it's got a viral infection, but instead of popping out gooey bits of pizza, it's sending out notifications about your poor Wi-Fi signal. Now, that's not a comedy show I'm talking about - it's a cyber-terrorist symphony!"

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But speaking of edgy, here's an example: "The CEO's 4 malware was like a digital burglar with a side of existential dread - it infiltrated their systems, threatened to delete all their sensitive files, and then left a cryptic message: 'Remember to turn off the lights before you go to bed.'"