https://devzone.nordicsemi.com/f/nordic-q-a/59384/a-question-regarding-securityIn our product, we use fds_record_write to store some user data on NRF52&#39;s internal flash. Is it possible for a hacker to read out the user&#39;s data even we have set the read protect, such as hacking from the chip command level? If there is a potentialen-USTelligent Community 13Mon, 23 Mar 2020 14:46:44 GMThttps://devzone.nordicsemi.com/thread/241182?ContentTypeID=1Mon, 23 Mar 2020 14:46:44 GMT137ad170-7792-4731-bb38-c0d22fbe4515:6a7c5347-2924-426b-a778-afc065807ab5Quark<p>That&#39;s exactly what we needed. Thank you, Jared!</p><div style="clear:both;"></div>https://devzone.nordicsemi.com/thread/241174?ContentTypeID=1Mon, 23 Mar 2020 14:30:04 GMT137ad170-7792-4731-bb38-c0d22fbe4515:97550efe-3d11-4628-88b2-bbd3ef64439bJared<p>Hi,</p> <p>Enabling read back protection by writing to the APPROTECT register will disable the SWD interface which blocks the debugger from writing and reading to all CPU registers and memory-mapped addresses.&nbsp;The only way to&nbsp;recover is&nbsp;to issue a nrfjprog --recover command which will erase the memory on the chip and enable the SWD interface.&nbsp;</p> <p>regards</p> <p>Jared</p><div style="clear:both;"></div>