diff --git a/Mage.Sets/src/mage/cards/s/SecurityBypass.java b/Mage.Sets/src/mage/cards/s/SecurityBypass.java
index 8f9379cc0a0..161dd0119ec 100644
--- a/Mage.Sets/src/mage/cards/s/SecurityBypass.java
+++ b/Mage.Sets/src/mage/cards/s/SecurityBypass.java
@@ -6,7 +6,7 @@ import mage.abilities.common.SimpleStaticAbility;
 import mage.abilities.condition.Condition;
 import mage.abilities.decorator.ConditionalRestrictionEffect;
 import mage.abilities.effects.common.AttachEffect;
-import mage.abilities.effects.common.combat.CantBeBlockedSourceEffect;
+import mage.abilities.effects.common.combat.CantBeBlockedAttachedEffect;
 import mage.abilities.effects.common.continuous.GainAbilityAttachedEffect;
 import mage.abilities.effects.keyword.ConniveSourceEffect;
 import mage.abilities.keyword.EnchantAbility;
@@ -38,7 +38,7 @@ public final class SecurityBypass extends CardImpl {
 
         // As long as enchanted creature is attacking alone, it can't be blocked.
         this.addAbility(new SimpleStaticAbility(new ConditionalRestrictionEffect(
-                new CantBeBlockedSourceEffect(), SecurityBypassCondition.instance,
+                new CantBeBlockedAttachedEffect(AttachmentType.AURA), SecurityBypassCondition.instance,
                 "as long as enchanted creature is attacking alone, it can't be blocked"
         )));