Use anti virus software on your computer or phone.
Your cellphone provider may provide one for Free. Ask customer service or your sales agent.
Other options:
👉 Best for No-Frills Protection:
"Bitdefender Antivirus" Free for Windows
👉 Best for Useful Bonuses:
AVG AntiVirus Free
AVG has Mobil apps
👉 Microsoft Defender Antivirus - built into Windows
👉 Avast for Mac/Apple