Ex-Partner Used Your Bank Account?

How a relationship leaves your account open to an ex

Couples can trust each other with money. They share passwords and banking apps, and pay rent, groceries or bills from each other’s accounts. While you are together, this feels normal.

The trouble starts when the relationship ends but the access does not. Your ex may still know your online banking password or PIN. Your banking app may still be logged in on a phone they kept, or they may have saved your account details.

If your ex then uses that access to move money for a mule operation, your account is flagged in a criminal investigation. ^[f2] Police trace the money to your account and you become a suspect.

The past relationship makes things harder. The prosecution may argue that shared access meant ongoing permission.

Permission and its limits

Section 424B of the Penal Code punishes giving control of your own account to another person without lawful authority or lawful purpose. ^[f1] The penalty is a fine of RM10,000 to RM100,000, or 1 to 7 years’ jail, or both.

With an ex-partner, the question is whether you gave your ex control of the account for a use like this. The answer depends on timing and context.

If you shared your account details during the relationship for normal reasons, that permission had a purpose. It covered shared bills, not passing crime money through your account. Your lawyer can argue your consent never covered criminal use.

If the transactions happened after the breakup, the argument can be stronger. Consent given in a relationship does not last forever after it ends. An ex using old access for things you never agreed to is very different from you allowing mule activity.

The knowledge element helps you further. ^[f4] Even if your ex had access, what you knew about the use, and why your ex had access, matter to your defence. If you had no part in your ex’s activities and saw no warning signs, this can work in your favour.

Your defence starts with the timeline

In ex-partner cases, the timeline is key evidence. A lawyer who handles mule account defence will piece together the relationship, the breakup and the transactions.

The relationship. When it started, how long it lasted and what money you shared. Evidence of normal account sharing shows the access came from a household setting.

The breakup. The date and how it happened matter. Messages, social media posts, friends who can confirm it, or a change of address all help fix the date. If the transactions came after the breakup, your defence may be stronger. ^[f3]

The transactions. Your lawyer will place each suspicious transaction on the timeline.

Was it before or after the breakup? Were you with your ex at the time or apart? Did the pattern change after you split up?

What you noticed. Did you check your account often? Did anything look odd? If you only found out when police contacted you or the account was frozen, that supports the point that you did not know.

Password changes. Did you change your banking passwords after the breakup, and when? Not changing them is not the same as giving permission, but the dates still matter.

What to do now

Change every banking login now. Change your online banking password, PIN and any security questions your ex could answer. Turn on two-factor authentication. Tell your bank a former partner had access without your permission. ^[f5]

Keep evidence of the relationship and the breakup. Save messages that show when you were together and when you split up. Save any messages where your ex talked about money, asked about your account or mentioned money problems. Do not delete anything, because old messages may be key evidence.

Show why you first shared access. If you shared details for rent or bills, gather proof of those payments. This shows the access was for the household, not for crime.

Do not contact your ex about the investigation. Anything you say can be used as evidence. It could also look like the two of you are trying to agree on a story. Let your lawyer handle anything to do with the case.

Speak to a lawyer before giving a police statement. If police call you, attend, but ask to speak to a lawyer before answering questions. Read whether you need a lawyer for your statement, because your first statement matters a great deal.

Speak to a lawyer who handles mule account cases. A lawyer who handles these cases knows how a relationship changes the legal picture. They can build a defence around your history, the timeline and your facts.

If you feel ashamed or betrayed

This kind of case carries personal weight. You are dealing with a breakup, a sense of betrayal and a criminal investigation all at once. Those feelings are normal.

You may feel ashamed for trusting your ex. Some fear that admitting they shared access will look like admitting guilt. Neither worry should stop you from getting legal advice.

Sharing money with a partner is normal. Your ex’s choice to use that access for crime is not your fault. Lean on family or a counsellor for support, and let a lawyer deal with the legal side.

Why early legal advice helps

The investigation starts building its case straight away. Without a lawyer, every talk with police and every decision about your account happens without advice. ^[f4] Old messages and bank records also get harder to find over time.

A lawyer involved early can contact the investigating officer and give your side with evidence. They can make sure the relationship context is part of the investigation.

Your ex’s choices put your account at risk, and you have the right to defend yourself. Send a WhatsApp message with the dates and a lawyer can start by hearing what happened.

Sources

1. Low & Partners, “Keldai Accounts: When Helping a Friend Becomes a Criminal Offence” (2024)
2. Penal Code (Amendment) Act 2024, Sections 424A, 424B, 424C
3. BNM Consumer Alert on Mule Accounts (2024)
4. BNM Financial Consumer Protection Guidelines (2024)