# Proximity identification [ ![Cyber Security of Proximity Credentials](https://www.roger.pl/templates/yootheme/cache/f5/bezpieczne-karty-bia%C5%82e_t%C5%82o-f5bd5b4f.png) ### Cyber Security of Proximity Credentials 07 October 2021 Blog & News Proximity cards are a key element of the cyber security of the access control system. ](https://www.roger.pl/index.php?option=com_content&view=article&id=737&catid=202&lang=en-GB&Itemid=1039) [ ![GRADE 4 – The Highest Level of Security in Access Control. RACS 5 with a Compliance Certificate.](https://www.roger.pl/templates/yootheme/cache/5b/grade-4-blog-5ba8302e.jpeg) ### GRADE 4 – The Highest Level of Security in Access Control. RACS 5 with a Compliance Certificate. 31 July 2025 Blog & News In the world of security systems, there is no room for compromise—especially when the safety of people, data, and infrastructure is at stake. The GRADE classification system allows for precise determination of the level of protection required for a given facility. The highest level—**GRADE 4**—is intended for the most demanding and strategically important environments, such as military facilities, government administration, research laboratories, or critical infrastructure. At **Roger**, we not only understand these needs—we deliver solutions that meet them effectively. ](https://www.roger.pl/index.php?option=com_content&view=article&id=1373&catid=202&lang=en-GB&Itemid=1039) [ ![OSDP Proximity Readers in Roger's Portfolio](https://www.roger.pl/templates/yootheme/cache/83/mobile-identification-foto-83f6f340.png) ### OSDP Proximity Readers in Roger's Portfolio 20 January 2023 Product News Roger's portfolio has been extended with proximity readers supporting the OSDP v2.2 protocol. The readers can be used both in Roger's access control systems and third-party systems. ](https://www.roger.pl/index.php?option=com_content&view=article&id=868&catid=204&lang=en-GB&Itemid=1039)