Very old, all that. H// has a chequered history:
Sued by Cisco for nicking their IOS software (settled out of court, but H// withdrew all routing gear and made software changes).
Sued by Motorola (last week) for passing on trade secrets (no idea how valid, but it appears to be a follow on from a case last year, also involving another company called Lemko)
Anecdotally, I've heard of their engineers opening up competitor equipment to take pics while onsite at a customer premises.
Internally, I know they have very strict data protection policies as it is commonplace for workers to leave the company with a pile of docs, walk into a position at a competing company and hand them over - basically no computers allowed out of the buildings, USB ports and CD/DVD writers disabled. Mobile phones have to be very basic - no cameras on them...
On the other hand, it's not just Huawei that does it - it seems to be the culture in China to behave this way.