If we notice unusual activity on an account, we may temporarily lock the account. We lock accounts because we prioritize your safety and want to be proactive in preventing fraudulent activity. An account lock will not affect your account or prevent you from sending future payments. An account lock will typically last 24 - 48 hours. During this period, you will be unable to buy or sell stocks. For more, see Cash App Investing.

If your account is locked, you will receive a notification within 24 - 48 hours confirming we completed an investigation and unlocked your account. After you receive the notification, you will be able to log in and resume using your account.

Cash App Security

Cash App works diligently to keep you and your data secure. For your protection, payment information is encrypted and submitted to our servers securely, regardless of whether you’re using a public or private Wi-Fi connection or a data service on your phone (such as 3G, 4G or EDGE).

Cash App uses the same fraud detection infrastructure and safety standards that monitor millions of daily Square Point of Sale transactions. Cash App is also compliant with PCI Data Security Standard (PCI-DSS) Level 1.

There are a few steps you can take to protect your information as well. For example, you can use a password-protected login or passcode on your mobile device to keep your personal information safe. For more, read Avoid Scams and Keep Your Money Safe with Cash App.

Cash App Investing

Selling shares may have tax implications. If you have questions about your particular tax situation you should consult a tax advisor. Cash App Investing does not provide investment advice or recommendations. Investing involves risk and you may lose money. Review the Disclosure Library for more on the risks involved with investing. Brokerage services provided by Cash App Investing LLC, member FINRA/SIPC and a subsidiary of Block, Inc. For more, read Broker-Dealer Disclosures .