diff --git a/code/controllers/configuration/sections/admin_configuration.dm b/code/controllers/configuration/sections/admin_configuration.dm
index 42bcbff4bc1..9050bd79a5d 100644
--- a/code/controllers/configuration/sections/admin_configuration.dm
+++ b/code/controllers/configuration/sections/admin_configuration.dm
@@ -13,6 +13,8 @@
 	var/list/ckey_rank_map = list()
 	/// Assoc list of admin ranks and their colours. key: rank | value: rank colour
 	var/list/rank_colour_map = list()
+	/// Assoc list of CIDs which shouldnt be banned due to mass collisions
+	var/list/common_cid_map = list()
 
 /datum/configuration_section/admin_configuration/load_data(list/data)
 	// Use the load wrappers here. That way the default isnt made 'null' if you comment out the config line
@@ -38,6 +40,12 @@
 		for(var/list/kvset in data["admin_rank_colour_map"])
 			rank_colour_map[kvset["name"]] = kvset["colour"]
 
+	// Load common CIDs
+	if(islist(data["common_cid_map"]))
+		common_cid_map.Cut()
+		for(var/list/kvset in data["common_cid_map"])
+			common_cid_map[kvset["cid"]] = kvset["reason"]
+
 	// For the person who asks "Why not put admin datum generation in this step?", well I will tell you why
 	// Admins can be reloaded at runtime when DB edits are made and such, and I dont want an entire config reload to be part of this
 	// Separation makes sense. That and in prod we use the DB anyways.
diff --git a/code/modules/admin/db_ban/functions.dm b/code/modules/admin/db_ban/functions.dm
index 44b27afb2e6..b6d113b67a2 100644
--- a/code/modules/admin/db_ban/functions.dm
+++ b/code/modules/admin/db_ban/functions.dm
@@ -112,6 +112,12 @@
 			to_chat(usr, "<span class='danger'>You cannot apply this ban type on yourself.</span>")
 			return
 
+	// Check validity of the CID. Some have a lot of collisions due to bad industry practices (thanks walmart)
+	if(computerid && (computerid in GLOB.configuration.admin.common_cid_map))
+		to_chat(usr, "<span class='notice'>You attempted to apply a ban that includes the CID [computerid]. This CID has been ignored for the following reason: [GLOB.configuration.admin.common_cid_map[computerid]]</span>")
+		// Cancel it out. DO NOT USE NULL HERE. IT MAKES THE DB CRY. USE AN EMPTY STRING.
+		computerid = ""
+
 	var/who
 	for(var/client/C in GLOB.clients)
 		if(!who)
diff --git a/config/example/config.toml b/config/example/config.toml
index 99c1dca9cd8..8f912e703b2 100644
--- a/config/example/config.toml
+++ b/config/example/config.toml
@@ -91,6 +91,10 @@ admin_rank_colour_map = [
 	{name = "PR Reviewer", colour = "#c27c0e"},
 	{name = "Mentor", colour = "#f1c40f"},
 ]
+# Map of common CIDs that should not be banned, plus their reasons
+common_cid_map = [
+	{cid = "3923664137", reason = "Mass-Match related to Walmart branded prebuilt PCs"}
+]
 
 
 ################################################################