looking for this manhwa

it's a bl all i remember is it's centered around hackers and the mc was in a group of hackers but left or betrayed them something like that i can't remember then hacker group leader goes after him but mc doesn't know it's him and thinks he's trying too be friends i can't really remember ik there's a coffee shop scene where they meet i think. idk it's been on my mind and i can't find it anywhere art was good it's really just a fuzzy memory in my head please help!!!