Run a full system scan with or Windows Defender.
Most "serial keys" you find on public forums or keygen sites are: Adobe Photoshop CC 2018 18.0 Serial Key -
Check your "hosts" file to ensure no malicious redirects were added. Run a full system scan with or Windows Defender
If you need Photoshop but don't want to risk your system’s security, consider these options: Adobe Photoshop CC 2018 18.0 Serial Key -
This is a professional-grade alternative to Photoshop that you can buy for a one-time fee. It has almost all the same features as Photoshop CC 2018 and no subscription is required.
Many sites claiming to offer these keys require you to download "activators" (like amtemu or universal patchers). These files are often flagged as Trojans or ransomware by antivirus software because they modify system files.