On: Dutch spies helped Britain's GCHQ break Argentine ...

[ArnoVW]

In general, in the spyworld you do not talk about your tricks. But if you've already been found out, and your tricks no longer work, there is still political advantage to be had (damage your adversary, obtain credit from partners, obtain funding, easier recrutement).

https://arstechnica.com/information-technology/2018/01/dutch...

[coldtea → ArnoVW]

Or if you just want to claim it to damage your adversary, whether they have the unit you supposedly hacked and it does what you say it does, or not...