ICloud accounts, even though not easily hacked, can still be hacked by skilled hackers or simply by people who are aware of your account details.
But if your device is misplaced or accidentally taken by someone (usually stolen), bypassing the iCloud activation is the only viable solution that one with good intentions can afford to find necessary details about the device's owner. The need to bypass iCloud activation is usually minimal as one is always aware of their iCloud account details.
