diff --git a/.github/workflows/typos.toml b/.github/workflows/typos.toml
index 7ee9554f0cdc3..4197628dfd7d0 100644
--- a/.github/workflows/typos.toml
+++ b/.github/workflows/typos.toml
@@ -14,8 +14,12 @@ darcula = "darcula"
 Hashi = "Hashi"
 trialer = "trialer"
 encrypter = "encrypter"
-hel = "hel"             # as in helsinki
-pn = "pn"               # this is used as proto node
+# as in helsinki
+hel = "hel"
+# this is used as proto node
+pn = "pn"
+# typos doesn't like the EDE in TLS_ECDHE_RSA_WITH_3DES_EDE_CBC_SHA
+EDE = "EDE"
 
 [files]
 extend-exclude = [
diff --git a/cli/server.go b/cli/server.go
index 6a35e8aaa95ea..9c80ab1d9b8c7 100644
--- a/cli/server.go
+++ b/cli/server.go
@@ -1569,6 +1569,19 @@ func generateSelfSignedCertificate() (*tls.Certificate, error) {
 	return &cert, nil
 }
 
+// defaultCipherSuites is a list of safe cipher suites that we default to. This
+// is different from Golang's list of defaults, which unfortunately includes
+// `TLS_ECDHE_RSA_WITH_3DES_EDE_CBC_SHA`.
+var defaultCipherSuites = func() []uint16 {
+	ret := []uint16{}
+
+	for _, suite := range tls.CipherSuites() {
+		ret = append(ret, suite.ID)
+	}
+
+	return ret
+}()
+
 // configureServerTLS returns the TLS config used for the Coderd server
 // connections to clients. A logger is passed in to allow printing warning
 // messages that do not block startup.
@@ -1599,6 +1612,8 @@ func configureServerTLS(ctx context.Context, logger slog.Logger, tlsMinVersion,
 			return nil, err
 		}
 		tlsConfig.CipherSuites = cipherIDs
+	} else {
+		tlsConfig.CipherSuites = defaultCipherSuites
 	}
 
 	switch tlsClientAuth {
diff --git a/cli/server_internal_test.go b/cli/server_internal_test.go
index 4e4f3b01c6ce5..cbfc60a1ff2d7 100644
--- a/cli/server_internal_test.go
+++ b/cli/server_internal_test.go
@@ -20,6 +20,28 @@ import (
 	"github.com/coder/serpent"
 )
 
+func Test_configureServerTLS(t *testing.T) {
+	t.Parallel()
+	t.Run("DefaultNoInsecureCiphers", func(t *testing.T) {
+		t.Parallel()
+		logger := slogtest.Make(t, nil)
+		cfg, err := configureServerTLS(context.Background(), logger, "tls12", "none", nil, nil, "", nil, false)
+		require.NoError(t, err)
+
+		require.NotEmpty(t, cfg)
+
+		insecureCiphers := tls.InsecureCipherSuites()
+		for _, cipher := range cfg.CipherSuites {
+			for _, insecure := range insecureCiphers {
+				if cipher == insecure.ID {
+					t.Logf("Insecure cipher found by default: %s", insecure.Name)
+					t.Fail()
+				}
+			}
+		}
+	})
+}
+
 func Test_configureCipherSuites(t *testing.T) {
 	t.Parallel()