QuoteCortosis was a material which could be made into a mesh which could conduct the energy from a blaster bolt. During the Clone Wars the cyborg business analyst Count Denetrius Vidian had a cortosis mesh skin graft installed on his body. Years later, when Vidian was attacked by the Jedi -in-hiding Kanan Jarrus and the Twi'lek pilot Hera Syndulla , the Count was able to utilise the graft to conduct energy from a blaster bolt fired by Syndulla into Jarrus, who Vidian was holding at the time. [3]
QuoteCortosis ore was a very rare, brittle, fibrous material whose conductive properties caused lightsabers to temporarily short out upon contact.
these are from the wiki, the first being canon section the later being legends section, i remember reading something else about the disruption happening due to the natural magnetic properties of the cortosis,
the ability to redirect the energy is new so i don't know exactly how it works, and i was apparently misrepresenting it by calling it absorbing energy