diff --git a/cypress/e2e/crypto/complete-security.spec.ts b/cypress/e2e/crypto/complete-security.spec.ts
deleted file mode 100644
index eab7fe26e24..00000000000
--- a/cypress/e2e/crypto/complete-security.spec.ts
+++ /dev/null
@@ -1,47 +0,0 @@
-/*
-Copyright 2023 The Matrix.org Foundation C.I.C.
-
-Licensed under the Apache License, Version 2.0 (the "License");
-you may not use this file except in compliance with the License.
-You may obtain a copy of the License at
-
-    http://www.apache.org/licenses/LICENSE-2.0
-
-Unless required by applicable law or agreed to in writing, software
-distributed under the License is distributed on an "AS IS" BASIS,
-WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-See the License for the specific language governing permissions and
-limitations under the License.
-*/
-
-import { HomeserverInstance } from "../../plugins/utils/homeserver";
-import { logIntoElement } from "./utils";
-
-describe("Complete security", () => {
-    let homeserver: HomeserverInstance;
-
-    beforeEach(() => {
-        cy.startHomeserver("default").then((data) => {
-            homeserver = data;
-        });
-        // visit the login page of the app, to load the matrix sdk
-        cy.visit("/#/login");
-
-        // wait for the page to load
-        cy.window({ log: false }).should("have.property", "matrixcs");
-    });
-
-    afterEach(() => {
-        cy.stopHomeserver(homeserver);
-    });
-
-    it("should go straight to the welcome screen if we have no signed device", () => {
-        const username = Cypress._.uniqueId("user_");
-        const password = "supersecret";
-        cy.registerUser(homeserver, username, password, "Jeff");
-        logIntoElement(homeserver.baseUrl, username, password);
-        cy.findByText("Welcome Jeff");
-    });
-
-    // see also "Verify device during login with SAS" in `verifiction.spec.ts`.
-});
diff --git a/playwright/e2e/crypto/complete-security.spec.ts b/playwright/e2e/crypto/complete-security.spec.ts
new file mode 100644
index 00000000000..f6d58e2fc5c
--- /dev/null
+++ b/playwright/e2e/crypto/complete-security.spec.ts
@@ -0,0 +1,35 @@
+/*
+Copyright 2023 The Matrix.org Foundation C.I.C.
+
+Licensed under the Apache License, Version 2.0 (the "License");
+you may not use this file except in compliance with the License.
+You may obtain a copy of the License at
+
+    http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing, software
+distributed under the License is distributed on an "AS IS" BASIS,
+WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+See the License for the specific language governing permissions and
+limitations under the License.
+*/
+
+import { test, expect } from "../../element-web-test";
+import { logIntoElement } from "./utils";
+
+test.describe("Complete security", () => {
+    test.use({
+        displayName: "Jeff",
+    });
+
+    test("should go straight to the welcome screen if we have no signed device", async ({
+        page,
+        homeserver,
+        credentials,
+    }) => {
+        await logIntoElement(page, homeserver, credentials);
+        await expect(page.getByText("Welcome Jeff", { exact: true })).toBeVisible();
+    });
+
+    // see also "Verify device during login with SAS" in `verifiction.spec.ts`.
+});
diff --git a/playwright/e2e/crypto/utils.ts b/playwright/e2e/crypto/utils.ts
new file mode 100644
index 00000000000..c0120f39577
--- /dev/null
+++ b/playwright/e2e/crypto/utils.ts
@@ -0,0 +1,54 @@
+/*
+Copyright 2023 The Matrix.org Foundation C.I.C.
+
+Licensed under the Apache License, Version 2.0 (the "License");
+you may not use this file except in compliance with the License.
+You may obtain a copy of the License at
+
+    http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing, software
+distributed under the License is distributed on an "AS IS" BASIS,
+WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+See the License for the specific language governing permissions and
+limitations under the License.
+*/
+
+import { type Page, expect } from "@playwright/test";
+
+import { Credentials, HomeserverInstance } from "../../plugins/homeserver";
+
+/**
+ * Fill in the login form in element with the given creds.
+ *
+ * If a `securityKey` is given, verifies the new device using the key.
+ */
+export async function logIntoElement(
+    page: Page,
+    homeserver: HomeserverInstance,
+    credentials: Credentials,
+    securityKey?: string,
+) {
+    await page.goto("/#/login");
+
+    // select homeserver
+    await page.getByRole("button", { name: "Edit" }).click();
+    await page.getByRole("textbox", { name: "Other homeserver" }).fill(homeserver.config.baseUrl);
+    await page.getByRole("button", { name: "Continue" }).click();
+
+    // wait for the dialog to go away
+    await expect(page.locator(".mx_ServerPickerDialog")).not.toBeVisible();
+
+    await page.getByRole("textbox", { name: "Username" }).fill(credentials.userId);
+    await page.getByPlaceholder("Password").fill(credentials.password);
+    await page.getByRole("button", { name: "Sign in" }).click();
+
+    // if a securityKey was given, verify the new device
+    if (securityKey !== undefined) {
+        await page.locator(".mx_AuthPage").getByRole("button", { name: "Verify with Security Key" }).click();
+        // Fill in the security key
+        await page.locator(".mx_Dialog").locator('input[type="password"]').fill(securityKey);
+        await page.locator(".mx_Dialog_primary:not([disabled])", { hasText: "Continue" }).click();
+        await page.getByRole("button", { name: "Done" }).click();
+    }
+}
diff --git a/playwright/element-web-test.ts b/playwright/element-web-test.ts
index dcc4367b972..2110ad7d105 100644
--- a/playwright/element-web-test.ts
+++ b/playwright/element-web-test.ts
@@ -50,6 +50,10 @@ export type TestOptions = {
     cryptoBackend: "legacy" | "rust";
 };
 
+interface CredentialsWithDisplayName extends Credentials {
+    displayName: string;
+}
+
 export const test = base.extend<
     TestOptions & {
         axe: AxeBuilder;
@@ -60,7 +64,8 @@ export const test = base.extend<
         startHomeserverOpts: StartHomeserverOpts | string;
         homeserver: HomeserverInstance;
         oAuthServer: { port: number };
-        user: Credentials;
+        credentials: CredentialsWithDisplayName;
+        user: CredentialsWithDisplayName;
         displayName?: string;
         app: ElementAppPage;
         mailhog?: { api: mailhog.API; instance: Instance };
@@ -120,7 +125,7 @@ export const test = base.extend<
     },
 
     displayName: undefined,
-    user: async ({ page, homeserver, displayName: testDisplayName }, use) => {
+    credentials: async ({ homeserver, displayName: testDisplayName }, use) => {
         const names = ["Alice", "Bob", "Charlie", "Daniel", "Eve", "Frank", "Grace", "Hannah", "Isaac", "Judy"];
         const username = _.uniqueId("user_");
         const password = _.uniqueId("password_");
@@ -129,6 +134,12 @@ export const test = base.extend<
         const credentials = await homeserver.registerUser(username, password, displayName);
         console.log(`Registered test user ${username} with displayname ${displayName}`);
 
+        await use({
+            ...credentials,
+            displayName,
+        });
+    },
+    user: async ({ page, homeserver, credentials }, use) => {
         await page.addInitScript(
             ({ baseUrl, credentials }) => {
                 // Seed the localStorage with the required credentials