Background Check Definition: What Is It and What Is Allowed?

At a time when resumes are polished with AI, references are digitally edited, and teams are recruited remotely, gut instinct is often no longer enough. We are currently experiencing a quiet epidemic of deception: studies show that up to 77% of all companies regularly receive fake resumes. But what exactly helps against it?

In this article, we not only explain the background check definition, but also look behind the scenes. We show you why modern background checks have nothing to do with distrust, but are a strategic lever for psychological safety in your team — and how to implement the whole thing in compliance with the GDPR.

What Is a Background Check? (Definition)

Let's start with the basics. A modern background check definition can be summarized as follows:

A background check (also called pre-employment screening) is a structured process in which organizations validate specific background information about a person to ensure that they are trustworthy and qualified for the position.

This is not about private curiosity or surveillance. It is about validation. You verify whether the person you hire really has the qualifications they claim to have. It is the shift from “blind trust” to “verified trust.”

Alternative names and synonyms: In day-to-day HR work, you will likely come across different terms:

• Pre-employment screening

• Background screening

• Reliability check

• Candidate screening

• Due diligence check (in a B2B context)

  
  
  

Why Are Background Checks Conducted? (The 3 Hard Facts)

You may be wondering: "Do we really need this? We have good interviews." The market provides the answer. We see three major drivers that turn background checks from a “formality” into a strategic necessity.

1. Protection Against “Resume Fraud” and AI Fakes

The technology for deception has exploded. It is no longer just about smoothed-over gaps.

• Level 1 (Embellishment): Slight exaggerations (almost normal these days).

• Level 2 (Fabrication): Completely made-up degrees or employers.

• Level 3 (Deepfakes): A new, alarming trend. Already 17% of hiring managers report “deepfake candidates” in video interviews. Without technological verification, you can no longer be sure who is really sitting in front of the camera.

2. The True Economics of a Bad Hire

What does a “bad hire” really cost you? It is often estimated at a flat 30% of the annual salary. Experts (e.g. Kienbaum) revise this sharply upward for the DACH region: costs are more likely to be 150% to 300% of the annual salary. On top of that, there are the “time-to-hire” costs: in Germany, filling a vacancy takes an average of 55 days. Can you afford to leave a key position unfilled — or filled incorrectly — for almost a year?

3. Psychological Safety & Signaling

Here it gets interesting: strict checks attract better candidates (Signaling Theory). A-players want to work with A-players. When you screen professionally, you signal: “Quality matters here. We protect you from toxic colleagues.” That significantly strengthens the morale of the existing team.

What Is Checked in a Background Check?

A background check is not a rigid product, but a modular toolkit. Depending on the risk level of the role, the screening is made up of different modules.

Types of Background Checks

• Pre-employment check: The standard before hiring.

• Recurring checks: In banks or security-related areas, checks are often carried out annually to see whether new risks (e.g. insolvency, sanctions lists) have emerged.

• Business partner due diligence: Before commissioning suppliers, you check their integrity (KYBP).

Industries & Roles: Where Is It Mandatory?

Screening is especially critical in regulated industries:

• Financial sector (DORA/BaFin): Screening for money laundering and financial integrity.

• Management & C-level: Protection against reputational damage (the “fake doctor” on the executive board).

• Critical infrastructure & IT: Protection against corporate espionage and sabotage.

  
  
  

The Components in Detail

What exactly is being checked?

1. Identity verification: Is the person real? (Basic defense against deepfakes).

2. Educational credentials: Does the degree really exist? (Protection against misuse of academic titles).

3. Employment history: Do the dates match? This is often where “overemployment” cases are uncovered (secretly holding two full-time jobs at the same time while working from home).

4. Sanctions lists: Is the person on international terror watchlists?

   
   
   

Background Check in Germany: What Is Allowed?

This is often where uncertainty arises. Many people think of US crime dramas and private detectives. The reality in Germany is strictly regulated by the GDPR and the Federal Data Protection Act (BDSG).

The guiding principle is: necessity. You may check everything that is necessary for the decision about the specific role.

• ✅ Allowed: Verification of degrees and professional positions (professional suitability). Research in professional networks (LinkedIn).

• ⚠️ Conditionally allowed: Police clearance certificates or creditworthiness checks. Only if the role requires it (e.g. work with money or children).

• ⛔ Prohibited: Research in private social media profiles (Instagram), questions about health or family planning.

👉 Want to know exactly? Read our detailed guide for HR here.

How Does a Background Check Work? (The Process)

A professional process always follows a clear framework to ensure legal compliance and fairness. Forget manual “Googling” — it is legally risky and inefficient.

The 5 steps of the process:

1. Obtain consent: Transparency is everything. The candidate agrees to the check digitally.

2. Collect data: The candidate uploads their documents (e.g. diploma) via a secure portal.

3. Verify information: The software compares the data with primary sources (universities, commercial register).

4. Create report: You receive a structured report (traffic-light system).

5. Make a decision: Based on verified facts, you make your choice.

   
   
   

Indicium's Approach: The “Enabler”

At Indicium, we turn the tables. We are not inspectors looking for mistakes. We are enablers who validate success. Our platform is mobile-optimized, so candidates can complete the check on their phone in 3 minutes. The result: no drop-off rates, but a positive brand experience.

👉 How a check with Indicium works

How Long Does a Background Check Take?

That is the key question in the “war for talent.”

• The old way (manual): If your team writes to universities itself or waits for authorities, it often takes 2 to 4 weeks. That massively increases your “time-to-hire” — and top talent walks away.

• The new way (Indicium): Thanks to API interfaces and AI automation, it happens in record time.

  • Identity & sanctions: real time.

  • Degrees & references: 24 to 48 hours.

Speed is a form of appreciation here. You show the candidate: “We work professionally and do not keep you waiting.”

Best Practices for Fair Checks

So that your process remains not only secure, but also human:

1. Communication: Don’t sell the check as mistrust, but as a quality standard (“We ensure a safe team”).

2. Data minimization: Only check what is relevant for the job. A warehouse worker does not need a credit check.

3. Standardization: Define fixed packages for each job level to avoid discrimination.

Conclusion: Trust Is Good, Indicium Is Better

A background check is no longer a bureaucratic nuisance. It is your insurance against reputational damage, exploding costs, and toxic teams.

In a market where 77% of resumes are “optimized,” validation is the only path to real security. Make your recruiting a zone of trust.

Let's talk about how Indicium can help you — without stress and without waiting.

Disclaimer: This report was prepared to the best of our knowledge based on the current legal situation in Germany, Austria, and Switzerland. It is intended for general information and does not replace individual legal advice.