Intent is literally a requirement for conviction under CFAA. It's the first line of the law: "Whoever having knowingly accessed a computer without authorization or exceeding authorized access..."
Robert Morris very intentionally wrote a computer virus, released it into the wild to infect computers he didn't have permission to use, and tried to cover his tracks by making it look like it came from MIT instead of Cornell. The only accidental part was that the virus was too successful, and that he got caught.
Lori Drew intentionally violated MySpace's TOS (in the course of cyberbullying a child until she killed herself), and was acquitted because TOS violations don't rise to the level of a crime.
Robert Morris very intentionally wrote a computer virus, released it into the wild to infect computers he didn't have permission to use, and tried to cover his tracks by making it look like it came from MIT instead of Cornell. The only accidental part was that the virus was too successful, and that he got caught.
Lori Drew intentionally violated MySpace's TOS (in the course of cyberbullying a child until she killed herself), and was acquitted because TOS violations don't rise to the level of a crime.