security really comes down to lazy developers. there is no reason why even an Arduino UNO cannot be secure… in fact, i just finished a series of blog posts where i took the liberty to create a secure Arduino UNO library - using elliptic curve crypto and AES. you can read the series here:
http://ardiri.com/blog/utls_defining_lightweight_security_for_iot_part_1
… through to
http://ardiri.com/blog/utls_defining_lightweight_security_for_iot_part_10
