Cyber security niye kichu tips dorkar, bhai keu help korben?

Assalamu alaikum bhai ra, apnara kemon achen? Ami Khulna theke ekjon software developer, amar ekta question chilo cyber security niye. Ajkal to online e kaj korte giye khub tension laage, hacking er khobor shunle buke dhok dhok kore. Specially bKash ar online banking niye ektu chintito, ki ki precaution newa uchit? Ar office er laptop e ki antivirus use kora dorkar naki Windows Defender e cholbe? VPN use korle ki actually kono benefit hoy? Apnader moddhe je bhai ra ei sector e kaj koren, ektu basic tips dile khub upokrito hotam. Inshallah next year theke ami o security niye ar ektu seriously shikhte chai. Dhonnobad.