Here is a blog post outlining why you should stick to official versions and what the actual risks are.
The Hidden Dangers of "Truecaller Premium" Mod APKs: What You Need to Know Truecaller-v13-0-2-APK---MOD-Cracked-2023-Latest-Version
Modified APKs are created by third parties who decompile the original app and inject their own code. Since these files are hosted on unofficial websites, there is no security vetting. Here is a blog post outlining why you