
Social engineering is a way of tricking people instead of hacking machines. Attackers mislead someone into sharing sensitive information, giving access to a system, or doing something that weakens security. They rely on human psychology, trust and everyday weak spots to get past ordinary security controls. This kind of trickery isn't new. Technology has just made it faster, cheaper and much easier to do at scale. That's why social engineering risk management matters as much to a bank customer checking their phone as it does to the bank itself.

Online, social engineering usually works in one of two ways:
This article covers what social engineering is, the forms we see most often today, the risks it creates and how to manage them.

Two types of social engineering are especially common right now.
Phishing is an attack used to steal user data such as login details and card numbers. It starts when someone opens an email, instant message or SMS that looks like it came from a trusted source.

The message pushes the reader to click a link. That link might install malware, or it might open a fake website that looks just like the real one and asks for account details. Either way, the result is a compromised device, a compromised account or both.
Vishing, short for voice phishing, happens over the phone. The attacker calls the victim and uses social engineering tactics to get personal information that opens the door to their financial accounts.

In Nepal, this is one of the most common scams right now. Fraudsters call bank customers, claim to be bank staff and ask for the account number and OTP "to update your KYC." The figure above shows how a typical vishing attack plays out.
A simple rule: a genuine bank employee has no reason to ask for your OTP, PIN or password. If a caller asks for any of these, hang up.
The damage from social engineering isn't limited to money lost or data leaked. Victims often feel stressed, anxious or violated afterwards, and that toll is real too. Here are the main risks and what they lead to.

Most attacks aim to get sensitive information: personal details, login credentials, financial data or confidential business data.
Many attacks are simply about money, whether they target one person or a whole organization.
A successful attack can seriously hurt the reputation of a person or an organization.
Once people and organizations understand these risks, they can act early to close the gaps attackers use. Below are the key measures that make a real difference.

Employees and customers both need regular awareness training. Staff should learn how social engineering works and what it can cost. Customers benefit from short educational material, blog posts and FAQs on these topics. Technology can't catch everything, so awareness is the last line of defense. It helps people notice red flags, report them quickly and stay alert.
Organizations should enforce strong password policies for both internal systems and customer-facing services. Complex passwords, regular rotation and two-factor authentication together make it much harder for fraudsters to get in.
Both organizations and individuals should keep devices and systems patched so attackers can't exploit known weaknesses. On mobile phones, install apps only from official app stores, and scan any app that comes from somewhere else. For your bank, use the official KS iMobile app rather than links sent by text or social media.
Many organizations outsource services to vendors to work more efficiently. But third-party access can also become a route for data loss. Every organization should review the security protocols vendors follow before giving them access to systems or sensitive data, and carry out proper due diligence. You can read more about this wider approach in the ecosystem of risk management.
Customers and employees need clear, easy-to-find ways to report anything suspicious straight away. Every report should be reviewed promptly and acted on. People also need step-by-step guidance on limiting the damage and recovering any losses.
For more everyday safety tips, see our guide to digital transactions in Nepal.
Social engineering in banking means tricking customers or staff into giving away sensitive information such as account numbers, passwords, PINs or OTPs. Attackers usually pretend to be bank staff, a government office or a trusted company, then use urgency or fear to get the victim to act before they think it through.
No. A genuine bank employee has no reason to ask for your OTP, PIN or password by phone, SMS or email. An OTP exists only to confirm a transaction that you started yourself. If someone asks for it, treat the call as fraud, hang up and contact the bank through its official number.
Phishing uses written messages, such as emails, SMS or chat messages, to trick you into clicking a fake link or sharing details. Vishing does the same thing through a phone call. Both rely on impersonation and pressure, and both usually aim to steal login details or banking information.
Never share your OTP, PIN or password. Check unexpected requests by calling the organization back on its official number. Turn on two-factor authentication, install apps only from official stores and keep your phone updated. If a message feels rushed or too good to be true, stop before you click anything.
Call your bank immediately and ask it to block the card or account. Change your mobile banking PIN and passwords, then report the case to the Nepal Police Cyber Bureau. Save the caller's number, any messages and screenshots, because this evidence helps with the investigation and any recovery.
It targets people instead of technology. Firewalls and antivirus software can't stop someone who willingly shares their own password. Attackers use trust, fear, urgency and helpfulness to push people into quick decisions. That's why regular awareness training is one of the strongest defences.
Social engineering is a constant, changing threat that gets past technical controls by targeting human weaknesses. The tactics keep changing, but the main dangers stay the same: leaked information, unauthorized access, financial loss and damage to reputation. Good social engineering risk management starts with understanding these risks. When people and organizations know what to look for, they can close the gaps attackers depend on. Regularly reviewing risk policies, training staff and customers, and strengthening technical controls are what keep that defence strong over time.
Author: Bidhan Koirala, Head: IT/Digital Banking, Kamana Sewa Bikas Bank Limited
Further reading: Nepal Rastra Bank and CISA.