Short answer

The best practices for securing a trading account are as follows:

Never share the login ID, password, or 2FA authentication with anyone.

Do not trade based on tips from WhatsApp groups, Telegram channels, Twitter, etc., without completely understanding the product and risks.

If advisors are involved, ensure they have an investment advisor license and look it up on the SEBI website.

Do not trade in leveraged products like options without completely understanding the risks.