Is it safe to buy second hand bulb?

I’m wondering is it safe to buy second hand lifx light bulb? Is there any possibility to change/write own customised firmware to bulb, that later can make some trouble in my network acting as a trojan horse?
Thank you.

No there hasn’t been any vulnerabilities exploited on the Lifx bulbs. If you’re worried about your new second hand bulb, you could monitor its network traffic to make sure it’s doing what you expect it do to.

I’ve got several second hand bulbs here and haven’t seen anything unusual.

The bulbs auto-update direct from LIFX so even if someone managed to put custom firmware on it’d be very hard to make it persistent.