Protecting your financial data

In the digital age, financial data has become one of the most valuable pieces of information for individuals and businesses alike. With the spread of online banking, financial apps, trading platforms and digital currencies, most transactions now take place online — offering great convenience to users, while at the same time increasing the importance of protecting financial data.

Financial data is not limited to bank account numbers alone; it also includes payment card details, transfer records, digital wallets, login credentials, and even documents containing financial or personal information.

When this information falls into the hands of people who are not authorised to access it, this can lead to a range of risks, such as data misuse, identity theft, or attempts to gain unauthorised access to accounts.

Protecting financial data has therefore become an essential part of personal security, and not the responsibility of financial institutions alone. Users themselves play an important role in protecting their information by following safe practices when using digital services.

In this guide, we will look at the most important ways to help protect your financial data, the key mistakes to avoid, and the practical steps that help reduce risk when using banking services, investment platforms, and digital wallets.

Financial data is all the information related to your accounts, assets or financial dealings, whether digital or on paper.

It includes, for example:

• Bank account numbers.
• Payment card details.
• Transfer records.
• Digital wallets.
• Passwords for financial services.
• Verification codes.
• Login credentials.
• Financial documents.
• Contracts.
• Account statements.

This information is considered sensitive because it could be used to access accounts or carry out financial transactions if it is not handled securely.

The growing reliance on digital services has made financial data more valuable than ever before.

Rather than targeting money directly, some attackers may first try to obtain information that would let them access accounts, steal identities, or carry out unauthorised transactions.

For this reason, protecting data begins before any problem occurs, through awareness and by following the right practices in everyday use.

Information may be obtained through various means, such as:

• Fake websites.
• Emails impersonating well-known organisations.
• Untrustworthy links.
• Unofficial apps.
• Sharing data with unauthorised people.
• Weak passwords.
• Using public internet networks without taking appropriate precautions.

Using one of these means does not necessarily mean a breach has occurred, but they represent points that deserve attention and appropriate precautions.

Most modern attacks rely more on exploiting user behaviour than on exploiting technical systems.

This is why understanding fraud methods, recognising warning signs, and following safe practices contributes significantly to reducing the likelihood of exposure to risk.

Knowledge does not prevent every threat, but it gives the user the ability to spot unusual situations and deal with them more cautiously.

Many people believe that protecting financial data depends only on the strength of technical systems or the security measures provided by banks and financial platforms, but the reality is different. In many cases, the human factor is one of the main causes leading to information being exposed or misused.

For this reason, knowing the common mistakes significantly helps reduce risk and makes dealing with financial services safer.

Sharing information with unauthorised people

One of the most widespread mistakes is sharing financial information with people who have no genuine need to be given this data.

This may include:

• Bank card numbers.
• Verification codes (OTP).
• Passwords.
• Login credentials.
• Digital wallet information.
• Wallet seed phrases.

This information should be treated as personal and confidential, and should not be shared with anyone, regardless of the reasons or justifications given.

Using weak passwords

Weak passwords remain one of the leading causes of unauthorised access to accounts.

Examples of insecure passwords include:

• 123456
• Password
• Date of birth
• Phone number
• A person's name combined with their birth year

It is preferable to use long, complex passwords made up of:

• Upper- and lower-case letters.
• Numbers.
• Symbols.

It is also advisable not to use the same password for more than one account.

Ignoring two-factor authentication

Many financial services offer two-factor authentication, which adds an extra layer of protection when logging in.

When this feature is enabled, entering the password alone is not enough — it also requires a verification code sent to the user's device or a dedicated app.

Although this step takes a few extra seconds, it contributes significantly to strengthening account protection.

Using public internet networks

Connecting to public Wi-Fi networks may be fine for browsing the internet, but it may not be the best choice when carrying out financial transactions or logging in to banking or investment accounts.

It is therefore preferable to:

• Use a trusted network.
• Avoid carrying out financial transactions over public networks.
• Use a secure connection whenever possible.

Clicking on unknown links

Emails, text messages or messages via messaging apps sometimes arrive containing links asking the user to log in or update their data.

Before clicking on any link, make sure of:

• The source of the message.
• The website address.
• The accuracy of the domain name.
• The presence of a secure connection (HTTPS).

If you have any doubt, it is better to go to the official website directly rather than using the link contained in the message.

Downloading apps from unofficial sources

It is always best to download financial or banking apps only from official app stores.

It is also recommended to check:

• The developer's name.
• The number of downloads.
• User ratings.
• The date of the last update.

Ignoring system updates

Operating system and app updates often include important security improvements.

For this reason, delaying updates for long periods may increase the likelihood of certain security vulnerabilities being exploited.

Storing sensitive data insecurely

Common mistakes include:

• Saving passwords in text files.
• Photographing bank cards and keeping the images on your phone.
• Sending sensitive information through unsecured apps.
• Sharing financial documents without verifying the recipient.

Secure storage methods should be used, and information sharing should be kept to the minimum necessary.

You can strengthen your level of security through a set of simple steps, including:

Not necessarily.

If you receive a message asking you to:

• Update your account information.
• Confirm your identity.
• Enter your password.
• Share a verification code.

Then first make sure the message actually comes from the official organisation, and do not rely on the message itself to reach the website — instead use the official website or approved app.

The less widely your financial data is circulated, and the fewer parties you share it with, the easier it becomes to keep it private and reduce the likelihood of it being misused.

Some may think that protecting financial data requires advanced technical knowledge, but in reality, everyday protection relies on a set of simple habits that anyone can apply.

The more these habits become part of your daily routine, the greater your ability to reduce risk and protect your financial information.

First: monitor your accounts regularly

One of the best practices is to review your bank accounts periodically, even if you do not expect any problem.

Be sure to review:

• Recent financial transactions.
• Withdrawals and deposits.
• Electronic payments.
• Bank notifications.
• Devices registered to access the account, if the service provides this.

Regular review helps detect any unusual activity early.

Second: enable account notifications

Most banks and financial apps offer instant notification services.

It is best to enable notifications for:

• Logins.
• Purchases.
• Transfers.
• Password changes.
• Adding a new device.
• Changes to personal data.

These notifications help you know about any activity on your account the moment it happens.

Third: use a different password for each account

One common mistake is using the same password for all accounts.

If an unauthorised person manages to gain access to one password, they may try to use it to access other accounts.

It is therefore recommended that each financial or banking account have its own independent password.

Fourth: be wary of sharing your phone or device screen

Some people may ask you to share your screen during a video call or to install software for remote access to your device.

Before agreeing to any such request, make sure of:

• The reason for the request.
• The requester's identity.
• The nature of the software.
• The permissions it will be granted.

Do not grant any party access to your device unless you are completely certain of the need to do so and of the requester's identity.

Fifth: protect your payment cards

Payment cards contain important financial information, so it is best to follow some simple measures such as:

• Not sharing a photo of the card.
• Not sending card details through messaging apps.
• Not writing the PIN on the card itself.
• Keeping the card in a safe place.
• Reviewing transactions made with the card regularly.

Sixth: protect digital wallets

If you use cryptocurrency wallets, it is important to pay attention to:

• Keeping the recovery (seed) phrase in a safe place, offline.
• Not sharing the phrase with anyone.
• Using official wallets.
• Continuously updating apps.
• Verifying the wallet address before sending any transfer.

Remember that the recovery phrase grants access to the wallet, and so it must be treated with complete confidentiality.

Seventh: protect your email

Email is often linked to banking and investment accounts, so securing it is an essential step.

It is recommended to:

• Use a strong password.
• Enable two-factor authentication.
• Review connected devices.
• Be wary of suspicious messages.
• Avoid clicking on unknown links.

Eighth: keep devices continuously updated

Operating system and app updates help fix security vulnerabilities and improve the level of protection.

So make sure to:

• Update your phone.
• Update your computer.
• Update banking apps.
• Update digital wallet apps.

If you notice a transaction you do not recognise, an unexpected login, or a verification message you did not request, it is best to act quickly.

Initial steps may include:

• Changing your password.
• Logging out of all devices, if the service allows this.
• Reviewing security settings.
• Contacting the relevant organisation through official channels.
• Keeping all information related to the incident.

Acting quickly may help limit any potential impact.

Before ending this section, make sure you are applying these practices:

Protecting financial data is not a one-time action, but an ongoing process that relies on awareness, attentiveness, and updating security habits as technology and fraud methods evolve.

Even when following best security practices, anyone may encounter a situation that raises suspicion, such as receiving an unusual message, noticing an unfamiliar financial transaction, or discovering a login attempt on one of their accounts.

In such situations, acting quickly and organising your steps are among the most important factors that help reduce risk.

First: stay calm

Anxiety or stress can lead to hasty decisions, such as clicking on unknown links, contacting unofficial parties, or deleting information that may be important later.

So the first step is to pause for a moment and calmly assess the situation before taking any action.

Second: change your passwords immediately

If you have reason to believe that your login details may have become known to someone else, it is best to change your password straight away.

Start with the most important account, then move on to other linked accounts, particularly:

• Email.
• Bank accounts.
• Digital wallets.
• Investment platforms.
• Electronic payment apps.

It is also advisable not to reuse old passwords.

Third: enable or review two-factor authentication settings

If you have not already enabled two-factor authentication, now may be a good time to do so.

If it is already enabled, make sure of:

• The phone number linked to the account.
• The backup email address.
• Trusted verification devices.
• The authentication app, if you use one.

Fourth: review the latest activity on your accounts

Many services allow you to review:

• Devices that have logged in.
• Geographic locations.
• Login times.
• The latest financial transactions.

If you notice activity you do not recognise, log out of unfamiliar devices if the service allows this, then review your security settings.

Fifth: keep all information

One common mistake is deleting messages, conversations or notifications immediately.

Instead, keep:

• Emails.
• Text messages.
• Screenshots.
• Bank notifications.
• Transaction reference numbers.
• Any information that may help explain what happened.

Organising this information helps you review the situation better later on.

Sixth: do not share any further information

If you begin to suspect that there is an attempt to access your data, avoid:

• Sending additional documents.
• Sharing verification codes.
• Sharing passwords.
• Sharing your wallet recovery phrase.
• Sharing photos of bank cards.

Any new request for sensitive information deserves verification before you respond to it.

Seventh: use official channels only

If you need to contact your bank, service provider, or any other organisation, always use the official channels found on the official website or app.

Avoid relying on numbers or links sent in unexpected messages without verifying them.

Eighth: monitor your accounts over the following days

Even if you do not notice any unusual activity, it is good to keep monitoring your accounts over the following period to make sure no unexpected transactions appear.

Monitoring may include:

• Reviewing financial transactions.
• Following notifications.
• Making sure account details have not been changed.
• Reviewing devices linked to the account.

If you feel that your financial data may be at risk, you can follow this plan:

Step one

Stop any new financial transaction until you have confirmed the account is secure.

Step two

Change the passwords for your important accounts.

The content published on this site is for awareness and general knowledge purposes only, and does not constitute legal, financial, or investment advice.