Legality and safety
Check the service, the source and your local rules.
IPTV is a delivery method. The legality of a particular stream depends on licensing, content rights and jurisdiction.
Questions worth asking
Who operates the service? Are the offered channels licensed for the market? Are payment and support details clear? Avoid services that ask for unnecessary personal information or encourage you to bypass protections.
Protect your account
Use official support channels, keep access details private and avoid installing modified apps from unknown sources. Check your device security settings after any sideloading decision.