diff --git a/kernel/bpf/Kconfig b/kernel/bpf/Kconfig
index a82d6de86522..d24d518ddd63 100644
--- a/kernel/bpf/Kconfig
+++ b/kernel/bpf/Kconfig
@@ -64,6 +64,7 @@ config BPF_JIT_DEFAULT_ON
 
 config BPF_UNPRIV_DEFAULT_OFF
 	bool "Disable unprivileged BPF by default"
+	default y
 	depends on BPF_SYSCALL
 	help
 	  Disables unprivileged BPF by default by setting the corresponding
@@ -72,6 +73,12 @@ config BPF_UNPRIV_DEFAULT_OFF
 	  disable it by setting it to 1 (from which no other transition to
 	  0 is possible anymore).
 
+	  Unprivileged BPF could be used to exploit certain potential
+	  speculative execution side-channel vulnerabilities on unmitigated
+	  affected hardware.
+
+	  If you are unsure how to answer this question, answer Y.
+
 source "kernel/bpf/preload/Kconfig"
 
 config BPF_LSM