Kevin Karhan :verified:<p><span class="h-card" translate="no"><a href="https://infosec.exchange/@cesarpose" class="u-url mention" rel="nofollow noopener" target="_blank">@<span>cesarpose</span></a></span> <span class="h-card" translate="no"><a href="https://mastodon.social/@mrmasterkeyboard" class="u-url mention" rel="nofollow noopener" target="_blank">@<span>mrmasterkeyboard</span></a></span> depends on the model and <a href="https://infosec.space/tags/hp" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>hp</span></a> has something more sinister:</p><ul><li>In many <a href="https://infosec.space/tags/ProBook" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>ProBook</span></a>|s they literally do a <em>"soft" <a href="https://infosec.space/tags/VendorLock" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>VendorLock</span></a></em> re <a href="https://infosec.space/tags/RAM" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>RAM</span></a>, so if the stick's ain't hp-branded (as per SPD-EEPROM) the <a href="https://infosec.space/tags/UEFI" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>UEFI</span></a> will brick <a href="https://infosec.space/tags/UnattendedBoot" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>UnattendedBoot</span></a>, <a href="https://infosec.space/tags/UnattendedReboot" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>UnattendedReboot</span></a> &amp; <a href="https://infosec.space/tags/PXEboot" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>PXEboot</span></a> by popping up an error message every boot that needs to be dismissed by hitting F1 on the internal keyboard (!!!) and can't be dismissed permanently.</li></ul><p>I literally had this with a client in the past and it's the reason a <a href="https://infosec.space/tags/refurbisher" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>refurbisher</span></a> I know didn't offer RAM-<a href="https://infosec.space/tags/Upgrades" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>Upgrades</span></a> for HP machines <em>at all</em>…</p>