It's very hard to maintain an anonymous Twitter account that can withstand government-level attempts to de-anonymize it

As soon as you power on your burner phone, it will connect to cell phone towers, and the phone company will know your location. So, don’t activate your phone, or keep it powered on at all, at your home or office — instead, go to a public place, like a coffee shop, before activating your new phone. Keep it powered off while you’re not using it.

…and remove the battery.

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