diff --git a/CHANGELOG.md b/CHANGELOG.md
index 99107ac..e08c04c 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,5 +1,22 @@
 # Changelog
 
+## Unreleased
+
+### Important Changes
+
+- **fix(browser): Ensure IP address is only inferred by Relay if `sendDefaultPii` is `true`** ([#390](https://github.com/getsentry/sentry-cordova/pull/390))
+
+This release includes a fix for a behaviour change
+that was originally introduced with the newer JavaScript SDK: User IP Addresses should only be added to Sentry events automatically,
+if `sendDefaultPii` was set to `true`.
+
+To avoid making a major bump, the fix was patched on the current version and not by bumping to V10.
+There is _no API_ breakage involved and hence it is safe to update.
+However, after updating the SDK, events (errors, traces, replays, etc.) sent from the browser, will only include
+user IP addresses, if you set `sendDefaultPii: true` in your `Sentry.init` options.
+
+We apologize for any inconvenience caused!
+
 ## 1.6.0
 
 ### Fixes
diff --git a/src/js/__tests__/integrations/sdkinfo.test.ts b/src/js/__tests__/integrations/sdkinfo.test.ts
new file mode 100644
index 0000000..2db8815
--- /dev/null
+++ b/src/js/__tests__/integrations/sdkinfo.test.ts
@@ -0,0 +1,95 @@
+import { addEventProcessor, getClient } from '@sentry/core';
+
+import { SdkInfo } from '../../integrations/sdkinfo';
+import { SDK_NAME, SDK_VERSION } from '../../version';
+
+jest.mock('@sentry/core', () => ({
+  addEventProcessor: jest.fn(),
+  getClient: jest.fn(),
+}));
+
+describe('SdkInfo Integration', () => {
+  beforeEach(() => {
+    jest.clearAllMocks();
+  });
+
+  it('should have correct id and name', () => {
+    const sdkInfo = new SdkInfo();
+    expect(SdkInfo.id).toBe('SdkInfo');
+    expect(sdkInfo.name).toBe('SdkInfo');
+  });
+
+  it('should add an event processor', () => {
+    (getClient as jest.Mock).mockReturnValue({
+      getOptions: () => ({ sendDefaultPii: true }),
+    });
+
+    const sdkInfo = new SdkInfo();
+    sdkInfo.setupOnce();
+
+    expect(addEventProcessor).toHaveBeenCalled();
+  });
+
+  it('should patch event sdk info correctly with sendDefaultPii true', async () => {
+    (getClient as jest.Mock).mockReturnValue({
+      getOptions: () => ({ sendDefaultPii: true }),
+    });
+
+    const sdkInfo = new SdkInfo();
+    sdkInfo.setupOnce();
+
+    const eventProcessor = (addEventProcessor as jest.Mock).mock.calls[0][0];
+
+    const event = { sdk: { packages: [] } };
+    const processedEvent = await eventProcessor(event);
+
+    expect(processedEvent.platform).toBe('javascript');
+    expect(processedEvent.sdk.name).toBe(SDK_NAME);
+    expect(processedEvent.sdk.version).toBe(SDK_VERSION);
+    expect(processedEvent.sdk.packages).toContainEqual({
+      name: 'npm:sentry-cordova',
+      version: SDK_VERSION,
+    });
+    expect(processedEvent.sdk.settings?.infer_ip).toBe('auto');
+  });
+
+  it('should patch event sdk info correctly with sendDefaultPii false', async () => {
+    (getClient as jest.Mock).mockReturnValue({
+      getOptions: () => ({ sendDefaultPii: false }),
+    });
+
+    const sdkInfo = new SdkInfo();
+    sdkInfo.setupOnce();
+
+    const eventProcessor = (addEventProcessor as jest.Mock).mock.calls[0][0];
+
+    const event = { sdk: {} };
+    const processedEvent = await eventProcessor(event);
+
+    expect(processedEvent.sdk.settings?.infer_ip).toBe('never');
+  });
+
+  it('should preserve existing sdk settings', async () => {
+    (getClient as jest.Mock).mockReturnValue({
+      getOptions: () => ({ sendDefaultPii: true }),
+    });
+
+    const sdkInfo = new SdkInfo();
+    sdkInfo.setupOnce();
+
+    const eventProcessor = (addEventProcessor as jest.Mock).mock.calls[0][0];
+
+    const event = {
+      sdk: {
+        packages: [],
+        settings: { debug: true },
+      },
+    };
+    const processedEvent = await eventProcessor(event);
+
+    expect(processedEvent.sdk.settings).toEqual({
+      infer_ip: 'auto',
+      debug: true,
+    });
+  });
+});
diff --git a/src/js/integrations/sdkinfo.ts b/src/js/integrations/sdkinfo.ts
index cef5b5b..ddf7c92 100644
--- a/src/js/integrations/sdkinfo.ts
+++ b/src/js/integrations/sdkinfo.ts
@@ -1,8 +1,14 @@
-import { addEventProcessor } from '@sentry/core';
-import type { Integration } from '@sentry/types';
+import { addEventProcessor, getClient } from '@sentry/core';
+import type { Integration, SdkInfo as SdkInfoType} from '@sentry/types';
 
 import { SDK_NAME, SDK_VERSION } from '../version';
 
+interface IpPatchedSdkInfo extends SdkInfoType {
+  settings?: {
+    infer_ip?: 'auto' | 'never';
+  };
+}
+
 /** Default SdkInfo instrumentation */
 export class SdkInfo implements Integration {
   /**
@@ -19,21 +25,38 @@ export class SdkInfo implements Integration {
    * @inheritDoc
    */
   public setupOnce(): void {
+
+    let defaultPii: boolean | undefined = undefined;
+
+    const client = getClient();
+    if (client) {
+      const options = client.getOptions();
+      defaultPii = options.sendDefaultPii;
+    }
+
     addEventProcessor(async (event) => {
       event.platform = event.platform || 'javascript';
-      event.sdk = {
-        ...event.sdk,
-        name: SDK_NAME,
-        packages: [
-          ...((event.sdk && event.sdk.packages) || []),
-          {
-            name: 'npm:sentry-cordova',
-            version: SDK_VERSION,
-          },
-        ],
-        version: SDK_VERSION,
+      const sdk = (event.sdk || {}) as IpPatchedSdkInfo;
+
+      sdk.name = sdk.name || SDK_NAME;
+      sdk.packages = [
+        ...((event.sdk && event.sdk.packages) || []),
+        {
+          name: 'npm:sentry-cordova',
+          version: SDK_VERSION,
+        },
+      ];
+      sdk.version = SDK_VERSION;
+
+      // Patch missing infer_ip.
+      sdk.settings = {
+        infer_ip: defaultPii ? 'auto' : 'never',
+        // purposefully allowing already passed settings to override the default
+        ...sdk.settings
       };
 
+      event.sdk = sdk;
+
       return event;
     });
   }