[rft]

Just for clarification, the TFA is about the nRF51 which can be attacked via a debugger only. No glitching or other hardware was needed.

Your link is a different attack on the newer nRF52 series which no longer has the same weakness in its debug handling.

[rx_tx]

Thanks. I guess the top link pointing to the team's homepage and not the specific article is definitely confusing.