Gemalto are in a difficult situation. "We didn't find an intrusion" either means
1) there was a really good intrusion that they didn't find.
2) it never happened.
or
3) there was an intrusion but it wasn't too bad so can be swept rapidly under the carpet.
Option 3 is always likely as Gemalto will be wriggling for their financial lives and is the safest way out (admit a bit, declare "we're great, we coped with it" and "it's self terminating over time so it's ok" or "nobody uses it anyway").
Option 1 is scary and, if true, someone will be in a spooky bar drinking to a job well done!