[CrackBerry Question]

Whether priv can be put under surveillance by any agency for tapping or is secure

[Superfly_FR]

By taped you mean "voice" I'd presume ?
In this case and with a standard configuration, as any other phone, yes it can. But that's more a carrier issue.

But BlackBerry offers via its subsidiary company SecuSmart a (paying) solution that will encrypt voice/Text too.
Basically what Angela Merkel (German President) uses [add some extra security refinements].