diff --git a/core/arch/arm/plat-sam/conf.mk b/core/arch/arm/plat-sam/conf.mk
index 7f28508a719..a803072530d 100644
--- a/core/arch/arm/plat-sam/conf.mk
+++ b/core/arch/arm/plat-sam/conf.mk
@@ -42,6 +42,8 @@ $(call force,CFG_TZDRAM_SIZE,0x800000)
 # Not used now for current platform
 $(call force,CFG_EXTERNAL_DT,n)
 
+CFG_INSECURE ?= n
+
 CFG_MMAP_REGIONS ?= 24
 
 CFG_SHMEM_START  ?= 0x21000000