Turns out it was a neighbor's wireless network inviting a login.
Not clear why it happened now, the Pi3 is connected to my own WAP.
Maybe the connection dropped and the Pi advertized for an alternative?

Thanks, apologies for the noise.

bob prohaska


bob prohaska  wrote:
> I just noticed a popup window on my Pi3 titled ATT7BMS46a. It's an
> input dialog box asking for a pre-shared key. The buttons are ok and
> cancel, the icon in the title bar is a yellow padlock.
>
> Anybody recognize it? I didn't knowingly start anything new that needs
> keys and am slightly uneasy at its unbidden appearance. The machine
> is running Linux raspberrypi 4.9.28-v7+ #998 SMP Mon May 15 16:55:39 BST 2017
armv7l GNU/Linux, last updated a couple of days ago.
>
> Thanks for reading and any thoughts.
>
> bob prohaska
>

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