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Brand · 2 min read11 June 2026

Two in Three Customers Will Walk From a Brand They Don't Trust

A McCann study of more than 20,000 people across 20 markets finds over two thirds of consumers will walk from a brand they do not trust, and 55% think brands were more truthful 20 years ago. Trust is retention wearing a different shirt, and it is getting harder to hold.

Trust is not a brand value you put on a wall. It is the reason someone buys again instead of leaving. Lose it and you are buying every customer twice.

2 min read

A new McCann study has put a hard number on something most owners feel but rarely measure. Over two thirds of consumers will walk away from a brand they do not trust. The research, "The Truth About Global Brands", surveyed more than 20,000 people across 20 markets, and the findings point to a trust problem that is getting worse, not better.

The detail is uncomfortable. 72% of people say it is more important than ever to prioritise truth, yet 55% reckon brands were more truthful 20 years ago than they are today. So trust matters more while brands are seen as less trustworthy. That gap is the whole story.

There is an AI wrinkle on top of it. 76% of respondents fear that before long they will not be able to tell a real human from a computer-generated one. As more of what customers see is machine made, the brands that feel genuine become worth more, not less.

Why it matters

Trust is retention wearing a different shirt. A customer who trusts you comes back, refers you and forgives the odd mistake. A customer who does not is gone the second something cheaper shows up. The cost of replacing them lands straight on your acquisition budget, and acquisition is the most expensive money you spend.

55%

Share of consumers who believe brands were more truthful 20 years ago than they are today

This matters more in a market where customers research with AI before they ever reach you. By the time they land on your site they have already formed a view. If the picture does not match the promise, the trust is gone before you said a word.

What to do about it

Make sure what you say in marketing matches what the customer actually gets. The gap between promise and delivery is exactly where trust dies.
Treat reviews and post-purchase experience as brand assets, not afterthoughts. They are doing your trust building whether you manage them or not.
Be obviously human where it counts. Real people, real service, real responses. In a market drowning in machine made content, that is a difference customers can feel.
Measure repeat purchase and referral, not just first sale. Those are the numbers that tell you whether trust is holding.

Trust is slow to build and fast to lose, and it pays out in the cheapest customers you will ever get. The brands that guard it are the ones that stop paying full price for every sale.

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Filip Ivanković
The Debrief / From Filip Ivanković
One every morning. Six months in, you'll see the patterns most don't.
Strategy, benchmarks, and what's actually moving in Australian marketing. Four-minute read. The reps compound.
Filip Ivanković·Founder, New RebellionAboutLinkedIn