johnbl :
it is true that the encryption is not easy to bypass.
Short of some sort of brute force attack that could take a lifetime to complete, I know of no means to bypass bitlocker.
While, technically, any means of encryption can be defeated, the feasibility of doing so is minimal at best.
From a user's perspective, I see no practical risk to securing their data with bitlocker (unless they forget their password and lose their recovery key at which point the data is ultimately secure and effectively gone from existence).