ims he was working on a last$-$minute project deadline at the time the files were downloaded. However, several months ago, apary deployed a security tool that prevents concurrent logins to the network. This means only one person at a time could log werts credentials. If he was logged in to work on the project, no one else could use his password even if they knew it$.$ What Kurt's company using to establish that Kurt is the responsible party for the downloaded material?

horization

a security

repudiation

sent