Articles on OSDP and access control hacking
which offers better security, interoperability and functionality than legacy protocols.
Browse our list of articles to learn more SIA’s Open Supervised Device Protocol,
as well as the vulnerabilities inherent in legacy protocols such as Wiegand.

OSDP Offers Encryption Prescription: Why It’s Better Than Wiegand
“Combined with modern credentials, OSDP provides a way for secure end-to-end deployments with lower installation and operational costs.” Read more …
Access Control Benefits: SIA OSDP vs. Legacy Card Systems
“Consider the communications technology approach that will future-proof your system’s performance and security. While some access control systems leverage legacy technology like Wiegand, the most modern, advanced systems are powered by Open Supervised Device Protocol (OSDP).” Read more …
10 Steps: How to Set up Your Integration Business for OSDP Success
“Widespread adoption of OSDP, an access control communications standard, is long overdue. Fortunately, the barriers for entry are low.” Read more …
Popular Access Control
“If your new system leverages the Security Industry Association’s (SIA) Open Supervised Device Protocol (OSDP), it also will interface easily with control panels or other security management systems, fostering interoperability among security devices, whether using mobile or a card… OSDP is not in the same ballpark with Wiegand; it is in a different sport and country.” Read more …
The Quest for Electronic Access Control Best Practices
“OSDP basically is encrypted EAC communication using the popular RS-485 footprint. In comparison, OSDP provides reader-to-controller encryption and two-way communications while Wiegand has no encryption or two-way communications…OSDP is obviously the winner for today’s secure EAC communications.” Read more …
On-Ramp to the Cloud: Upgrading Physical Access Control with OSDP
“A key specification in the journey to the Cloud is the Open Supervised Device Protocol, which improves security while adding real-world efficiencies.” Read more …
SIA Names New Director of Standards and Technology
The Security Industry Association (SIA) has named Edison Shen as its new director of standards and technology… Read more …
OSDP & Identity Conversation with Doug OGorden & Salvatore D'Agostino (audio)
“In the OSDP Verified program, we have the world’s leading experts on OSDP. People who come into the program benefit from literally a hundred man years of knowledge on OSDP. Every development team we’ve interacted with has benefited from going through the verification program” Read more …
There is a Hole in the Boat: Why Access Control Professionals Need to Move from Wiegand to OSDP
For less than $100, anyone can go online and purchase a device known as an ESP Key. Bad actors can easily take a card reader off the wall and install this postage stamp-sized device on the existing wiring to “sniff” the data that is being transmitted across it. This sensitive data and the vulnerable way it is being transmitted requires attention… Read more …
Why OSDP?
Do you want to be known as the integrator that told your customer to use an old technology that created a vulnerability? OSDP is secure, has 2-way communication, allows readers to be supervised, and can be used to support everything at a door.… Read more …
OSDP Conversation with Doug OGorden & Tony Diodato, Cypress Founder & CTO (audio)
In this special episode of the ID Talk Podcast, FindBiometrics’ Doug OGorden speaks with Tony Diodato, co-chair of the Security Industry Association’s OSDP working group and owner and CTO of Cypress Integration Systems… Read more …
Cypress Sees OSDP Heading into Growth Phase
SIA’s Open Supervised Device Protocol is quickly becoming the minimum entry requirement for readers in the security industry today. OSDP is expected to be a core requirement for any reader in serious future security projects to protect the customer’s investment because of its higher level of security and potentially being an open industry standard for communication of access readers with access control systems and other management systems.… Read more …
5 Reasons Security Integrators Should be Implementing OSDP

By employing RS-485 serial communications, OSDP offers important installation benefits. Dedicated homerun wiring (or point-to-point) is no longer required from the access control panel to each individual reader… Read more …
OSDP Takes the Next Big Step
Far too often, your customers are forced to make tradeoffs between security and ease of use. As a general rule, the more secure a solution is, the more time is required to establish security protocols.
Access control using the Security Industry Association (SIA) Open Supervised Device Protocol (OSDP) standard is one of those exceptions where security is baked into the solution, providing customers with the security that they require and providing the integrator community with ease of deployment and maintenance capabilities far beyond those of traditional Wiegand access control deployments. Read more …
Exceeding Standards Within Access Control
Knowing that access control is one of the key elements in putting together a comprehensive security plan, it is imperative that standards are continually enhanced to give end users peace of mind knowing that their facilities are safe and secure.
To that end, the Security Industry Association (SIA) Working Group has developed and maintained the Open Supervised Device Protocol (OSDP) since 2011. Read more …
ISC West Virtual Session Highlights Promise of OSDP to Replace Wiegand
The Promise of OSDP: New Implementation and Retrofits
Hacked in 60 Seconds: How Legacy Wiegand Exposes Modern Access Control
In this ISC West recorded session, see how easily the Wiegand connection can be hacked and learn how SIA’s OSDP standard secures the connection in this session featuring ethical hacker Babak Javadi and format/protocol expert Tony Diodato, co-chair of the SIA OSDP Working Group.
Cypress among first to announce OSDP Verified solution
Cypress / Security Industry Association
The OSDP Standard
OSDP is a protocol that the Security Industry Association developed, and one that’s taking the industry by storm. In this episode of Inside Access Control, Lee Odess sits down with Salvatore D’Agostino, CEO of IDmachines and Co-Founder of OpenConsent, to talk about the new communication standard.
SIA open protocol approved as international standard
OSDP Receives IEC approval
OSDP: The future of access control
OSDP-to-legacy Wiegand panel converter simplifies adoption of SIA’s OSDP standard
State of the Market 2020: Access Control
Defending Physical Security Devices from Hackers
The Advantages of OSDP
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