Disclaimer: This article is for educational purposes. Always own a physical copy of any PS2 game you choose to back up or convert.
Generally, no—provided you downloaded it from a reputable source. Iso2opl exe
Keep it. But only keep a copy downloaded directly from the developer's GitHub. If you found it in a random C:\Users\Public\Temp folder with no memory of downloading it, run a full antivirus scan immediately. Disclaimer: This article is for educational purposes