diff --git a/releases/firmware-btc-v9.15.0/assertion-JunghoonLee.sig b/releases/firmware-btc-v9.15.0/assertion-JunghoonLee.sig
new file mode 100644
index 000000000..dec12fd12
Binary files /dev/null and b/releases/firmware-btc-v9.15.0/assertion-JunghoonLee.sig differ
diff --git a/releases/pubkeys/JunghoonLee.asc b/releases/pubkeys/JunghoonLee.asc
new file mode 100644
index 000000000..69d9e4a20
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