Angeles - Season 8 - Ncis: Los

: During the resolution of the mole storyline in "Payback," Eric uses a chain of text messages found on a deceased assassin's phone to track and locate Kensi, who had been kidnapped by CIA rogue operatives.

: In the season premiere, "Under Siege," Hetty sends Nell a text containing only "1D4D52C4" . Owen Granger explains this is a series of chess moves representing the Queen's Gambit , a strategy where a pawn is sacrificed for an advantage—foreshadowing Hetty's plan to "confess" to being the mole to protect the team. NCIS: Los Angeles - Season 8

: Later in the season ("From Havana with Love"), Hetty critiques modern digital communication, noting that while texts and emails can be easily intercepted, retro ham radio allows for broadcasting coded messages that only specific recipients can understand. Season 8 Key Story Arcs Review: NCISLA “767� (S8E19) - wikiDeeks : During the resolution of the mole storyline