Thanks for weighing in. I'm acutely aware of the danger of contacts restarting the A, and have done quite a bit to monitor comms and prevent contact. We have written plans in place and are working the plan. We have boundaries, where before there were few. We reference MB for guidance as we move forward.
There was some exposure post-A, but only to those we felt would be helpful. Exposed to OM's Former W,where he has frequent contact via kids, but that did not include OMs workplace -which will happen if I discover that this latest contact was indeed initiated by him.

Sad Dude, understand that hacking is real, and rare. No one is interested enough in your WW's sitch with OM to hack into an email account and send a message to your WW. WHY does she have the same email account or phone number? You should have changed all of your contact info after D-Day.

If you cant change numbers your wife should have her cell # blocked from his digits and most certainly have her settings to send and receive texts only from you/family etc. Puhleeze....this is sooo simple...plug up these holes.

I agree that plugging the hole is necessary, but merely blocking his number won't help if he calls from another number.

I changed my husband's cell phone number after D-Day. It was an EP he enthusiastically agreed with. End of potential problem.

i can totally relate to this as i have had to take an ivo out ow, after continious contact to my friends & family thru facebook, also under several fake names, giving details of the A to anyone who would listen
it's not so easy to make them go away, so i feel for you.
I kept getting told to ignore but thats not so easy & it still upsets things for a few days
I definatley keep my guard up & not sure that it will ever come down

Bliss, I've concluded that there IS someone out there, with bad intentions, that would do such a thing ( such as make hurtful follow-on contact)- someone with intimate knowledge of our situation, and who made the initial alert to me of the A's existence. She was the POSOM's ex-GF, the "concerned citizen", reportedly with a drinking problem, and who had related her own successful hacking into OM's accounts for years. She probably now can't stand the fact that she wasn't successful in destroying our M, and that we (W and me) are staying together.
This person is savvy enough to spoof a text message and hack a LinkedIn account. She had supposedly moved on, but for whatever reason, has come back into the fray to toss in a couple of grenades.
POSOM hasn't been reachable; he was alerted early of my calls (via caller ID), and won't take them (or my surrogate's), supposedly after "friending" me on LinkedIn. No one who is in line for an a**-whippin' would "friend" someone on LinkedIn or any OTHER social media.
Can you think of any other explanation that makes sense?

Bingo... and so in came the tell-tale texts from the OM's ex-GF (my original source for DDay), checking in to see how things were going, because she just got "curious" (5 mos later from our last contact)how my FWW and I were doing. I made her call me to make sure I wasn't talking to a "spoofer", and she did call. I did not accuse her of the spoofs or hacks, but after a while she felt herself losing control of the conversation, could sense a trap, and apologized for this day's contact and any "pot-stirring" that she may have caused. She never admitted to anything, and I didn't accuse.
Clearly, her lack of patience flushed her out, as she just didn't get the kind of reaction to her horrific acts that she wanted.
So there you have it... there really are troublemakers out there, sometimes they look and sound normal, but aren't. She wanted to appear as a friend, but is anything but.

Glad it wasn't OM.

Sounds like exGF is still living in the drama and can't get over him cheating on her and because her and OM's relationship didn't last she has an axe t grind with your W.