Was viewing this page on cookies and wondering for those under Third party cookies, such as TS*, TS01*, TSXXXXXXX_d, what does it mean by them being a "security" cookie? Does it mean there is no need to secure such cookies by configuring things like httponly/secure flags? thanks
The TS* cookies belong to an F5 load balancer, which also acts as a security device (especially via it's Application Security Module (ASM)). The cookies and their various uses are described here.
I would interpret the web site describing these cookies as "Security" as meaning they're put in place and used by a security device, as opposed to the web site itself. They are, in fact, not marked secure by default, although it is possible to add that.