Security and infrastructure
DPS have a dedicated and purpose built development and data centre,  specially designed for payments processing. DPS have invested and  continue to re-invest in state of the art, bank grade security and  infrastructure. DPS are fully certified as Visa AIS and MasterCard SDP  (PCI-DSS) compliant at processor level; using an approved QSA for quarterly scans on systems and full onsite  audits, annually. All sensitive information is encrypted with the 3DES  protocol, with Atalla Network Security Processors. 
For more information  on these standards please go to www.visa-asia.com/secured or www.mastercard.com/sdp/. 
Data centre:
  Transaction availability (ability to communicate a declined/accepted  response) is determined by significant number of factors including  whether the bank (either acquiring or issuing) is online. Wherever  possible, DPS has taken control of its mission critical systems  (building and data centre environment, generator, UPS etc), or DPS has  out sourced to the best available provider, with a backup provider. 
Internet:
  DPS owns all internal networking and firewall hardware and all single  points of failure are eliminated wherever possible; Cisco firewall's  provide seamless fail over (<5 seconds with all sessions preserved)  in the event of a primary firewall hardware failure and individual  routers are employed. The network is multi-homed; DPS’ primary Internet  connection is via Telecom DDS to Telecom IPNet with a hot backup via  United Networks Fibre optic cable (25m physical separation) to AT&T  Global. Telecom Advanced Solutions was engaged by DPS to design and  implement the system and Telecom LAN link is engaged to provide a  central 24*7 management for both the Telecom and AT&T routers. 
Testing:
  DPS provides 24*7*365 free developer testing access. Our test  environment accurately mirrors the behaviour of the production region.  Email support is available for developers. 
Customisation:
  DPS has full ownership of the source code  for all its supplied components, core transaction systems and acquirer  uplinks. DPS will customise or extend the functionality of components  to better suit the merchant requirements. As a rule, DPS will extend an  existing component in a manner that is backward compatible with  existing component releases and will own the extensions. The benefits  for the merchant are a wider base of users for a component and no cost  to maintain compatibility (e.g.: upgrade to support a new version of  Operating system or JVM) over the lifetime of the software.
