which information security characteristic(s) violated (or of some combination of characteristics)

Q1. Alex posts a message on 4chan, a popular online forum, asking people to visit the slashdot.org website at 2pm tomorrow

-confidentiality

-integrity

-availability

-authenticity

Q2. Samar copied her colleagues folder on a USB device without her knowledge

-confidentiality

-integrity

-availability

-authenticity