Not only that, they can access your keys and data on your device, the only way to be a little bit safer is keeping your keys and important data on a air gaped system, sign air gaped and broadcast it. Your CPU has backdoor and can communicate with the internet without you notice, i think this is just the tip of the iceberg. nostr:nevent1qqsyh4jzv24kytkr0an3fdh0v6p70ltq62h2uya7kd2cfcsm7xkj9ncpz4mhxue69uhhyetvv9ujuerpd46hxtnfduhsygzxpsj7dqha57pjk5k37gkn6g4nzakewtmqmnwryyhd3jfwlpgxtspsgqqqqqqsdpct63