thanks for your feedback. To answer your question:
1.) Within the next week I'll be introducing 256-bit SSL encryption across all accounts, I also have spent a lot of time ensuring login system etc. are hack proof and I have a backup system in place which backs up users files every 12 hours to to a secure location. Hopefully this will give peace of mind to users.
2.) As for it being better than share point. My goal was to make a simple document manager for small to medium companies and even photographers and such. Also cost, I tried to make the cost as competitive as possiblt to attract small commonalities and start-ups.