I was asked for all my SM accounts yesterday when dealing with the SS (aka DW&P). Although 'allegedly' just a trial I had apparently "volunteered for" (WTF? had been in touch for over 4 years), I was told they could not process any claim further until such time I could provide them.
A former colleague who now works for them said they are still seriously looking at forcing this and related phone apps on people (using 'Block-Chain technology') with real time tracking enforced on those with Job-seeker claims.
Can't see it myself, they'll use the tagging system currently used for criminals et al.
WTF is this world coming to?
Don't worry though it wont pass parliamentary scrutiny so it will be covered by the Glorious Leader Tzarina May using the Henry 8th Powers she intends to grab to MGBG(A) (Make Great Britain Great (Again))
AC for a bloody good reason!