There is a large-scale "JPMC Fraud Alert" email phishing scam alert or security notice that claims the recipients' accounts will be blocked because fraudulent activities have been detected on them. The fake alerts are being sent by cybercriminals, therefore, recipients are asked not to follow the instructions in them. If you are a JPMorgan customer and have received a fraud alert or security notice message, just call a local branch or the phone number at the back of a Chase debit/credit card and ask if any fraudulent activity was detected on your account, and tell them about the alert or security notice message you have received.
The JPMC Fraud Alert Email Scam

Recently, there's been activities in your account that seems unusual compared to your normal account activities, so we've taken security steps by blocking access to your account until you validate your information adequately.
The link in the fake email alert goes a fake Chase Bank website where visitors will be asked to sign in. If they attempt to do, their Chase Bank account credentials will be sent to the cybercrimianls behind the fake email alert.
If you have been tricked by the "JPMC Fraud Alert" scam, please contact JPMorgan Chase immediately for help.