Prove His Innocence

As soon as Valentina spoke, the classmates started an intense discussion, speculating about their relationship. Aiden looked towards Valentina who was walking over. Eric's face flushed red, but he didn't dare to argue loudly with Valentina. "Is it you who gave it? Why didn't he just tell us?" Valentina turned the laptop towards her, started operating with one hand on the keyboard, and asked, "Isn't the classroom surveillance on?" A few classmates rushed to inform her, "It's off." Valentina pulled out the electronic invoice stored in the computer for everyone to see. It clearly displayed her name. Eric still was not convinced, "How can you prove the authenticity of this invoice? How do you prove that this invoice belongs to this computer?" Valentina didn't argue with him anymore, she just turned the screen back to herself and said, "Share your Microsoft account from your computer." "It's useless. My computer has a firewall installed. I had a hacker do it for me online, you won't be able