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Quid Pro Quo

Quid pro quo is a social engineering attack in which an attacker offers something of value in exchange for access, credentials, or other sensitive resources. Unlike many covert manipulation tactics, it often involves the target knowingly participating in the exchange.

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About this video

Quid pro quo literally means "something for something," and while the concept itself is a normal part of everyday transactions, it takes on a more significant meaning in cybersecurity. As a social engineering attack, quid pro quo involves an attacker providing something of value — money, services, or other incentives — in return for access, credentials, or information that compromises an organization's security. A straightforward example would be purchasing an access card from an employee or paying someone to hand over system login credentials. What sets quid pro quo apart from many other social engineering tactics is its level of transparency. Most social engineering relies on covert manipulation, where the target is deceived without realizing it. In a quid pro quo scenario, however, the person being approached may be fully aware that the exchange is unethical or against policy and choose to go through with it regardless. This makes quid pro quo attacks relevant not only to external threat models but also to discussions of insider risk, organizational integrity, and security culture.

What you'll learn

Explain how quid pro quo functions as a social engineering attack technique, including its distinguishing characteristic of an overt exchange compared to other manipulation methods

What's covered

Quid Pro Quo Attack

Basic Definition
- Something for something
- Everyday exchange concept
- Buying goods or services
Common Examples
- Bribing a judge
- Buying access cards
- Purchasing credentials
Cybersecurity Context
- Gaining physical access
- Compromising system credentials
- Social engineering method
Overt vs Covert Nature
- Often victim is aware
- Deal made knowingly
- Can be covert sometimes

Key terms

Social Engineering: A manipulation technique that exploits human psychology to trick individuals into revealing confidential information.
Quid Pro Quo: A social engineering attack technique involving an overt exchange of something for something, such as offering a benefit in return for access, credentials, or sensitive information.

Topics

Quid Pro Quo Social Engineering Cybersecurity Human Manipulation Information Security

Transcript

Something for something

Quid pro quo itself is not really a bad term. In fact, you probably do this on a day-to-day basis. Anytime you buy something, you're essentially doing quid pro quo, which is you're making some sort of deal. You go in and you're exchanging money for some sort of product. Just an exchange of something for something is quid pro quo.

But often this is associated with some sort of legal term, or it's associated with cybersecurity, and it has a little different tilt on it when it comes from that perspective. In simple terms, quid pro quo just means something for something. We're exchanging something for something.

Examples

A bribe is an example of this. So if I were to hand over money to a judge to make them rule in a certain way one way or another, that would be considered a bribe. It's a type of quid pro quo.

From a cybersecurity perspective, maybe I need to gain access into a business. Maybe it's physical access, so I'm going to buy an access card from somebody, or maybe it's credentials to get into the system. So that is an example of just purchasing something, which would be quid pro quo.

Overt rather than covert

When we're talking about social engineering, usually we're talking about some sort of covert method of really being able to manipulate somebody and control somebody into doing something that's not good for the organization or the business, that attacks security in some way. But there are times when things can be more overt.

Quid pro quo is probably more overt in the sense that you're making a deal with somebody. You're giving somebody a bribe and they might know that they're doing something wrong. Maybe they're not; maybe it is covert and they don't realize that they're doing something wrong. But there's a good chance they probably know that they're doing something wrong, and they're still making the deal anyway. They're still making the exchange anyway.

So here's the attack card for quid pro quo. Really, what it means is you're exchanging something for something.

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