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Inside a Google Titan Bluetooth security key

Disassembly of a Google Titan Bluetooth two-factor security key .
The Google Titan security key
1 of 9 Adrian Kingsley-Hughes/ZDNet

The Google Titan security key

Here is the key before disassembly.

It split open easily
2 of 9 Adrian Kingsley-Hughes/ZDNet

It split open easily

The key succumbed to prying very easily.

The circuit board
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The circuit board

Here's the complete circuit board, which is not held inside the shell in any way, so if it breaks open, the guts fall out completely.

Peeling back the battery
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Peeling back the battery

The battery is stuck down onto the circuit board using a sticky pad.

Close up of the board
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Close up of the board

Here is a close up of the chips underneath the battery.

The battery
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The battery

The battery is a 35mAh 3.7W lithium polymer pack

Top of the circuit board
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Top of the circuit board

On the top of the chip is the main tactile button and a  NXP QN9021 Bluetooth LE chip.

Bluetooth antenna
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Bluetooth antenna

If you look closely you can see the track for the Bluetooth antenna between the chip and the battery.

Water test
9 of 9 Adrian Kingsley-Hughes/ZDNet

Water test

The circuit board survived a quick dunk in water, but the long term durability with regards to water or more aggressive liquids such as sweat or seawater doesn't seem good.

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