From what i hear and this is coming from my brother who is in IT there are so many passwords protecting it and codes protecting the information and a system set that if an attempt is made to obtain information it will self delete all information within it.
No offense to your brother, he's certainly a great, nice and bright guy regardless, but having talked with some brothers from their IT staff a few years ago, they certainly aren't the sharpest tools in the shed - that's saying considering the security knowledge and habits of the average IT guy. They told me they were taught in, and they spouted enough nonsense in a few minutes of conversation (lots of IT urban myths...) to know they didn't have much of a clue about computing, let alone security (security is an expertise in itself). Anyways, the spiritual schedule at Bethel wouldn't leave the 12-16 hours a day computing/internet use necessary to keep up to date in the field, let alone teach yourserlf. Anyone with the computing habits tied to security expertise wouldn't cut it spiritually at Bethel, and would probably go mad in that stale environment or go back to civil life pronto.
As for the "self delete" part, that's exactly the kind of myth spouted to magnify the divine security at the Borg. There's far better ways to protect the information, the "self delete" is the kind of James Bond trick that looks cool at the Theater and impresses the newbies, but doesn't do anything. Quite goes along with the level of expertise in their staff that they can swallow that nonsense.
The Borg, like any cult, would try to keep that information at all costs, even if they have to lie about having deleted it (they'd just say they never had one). They thrive on control, and they wouldn't want to relinquish the power that list gives them on the sex offenders, the elders complicit in covering the case and the victims (since victimes are also culprits in the sick minds of the Watchtower, like an abused wife is the source of the abuse). The sex offenders are good high responsibilities material, since the Borg can hold them by their cojones the day they'd want to "betray" the hive.