Sophos Mobile Free – https://www.sophos.com/en-us/free-tools
Has your account been hacked? https://haveibeenpwned.com
Is a URL or file abusive? https://www.virustotal.com/gui/home/url
Checks website for https://www.sitelock.com/free-website-scan/
Checks SSL/TLS, site safety. https://www.ssltrust.com/ssl-tools/website-security-check
Malware removal https://www.malwarebytes.com/solutions/virus-scanner