Want to Earn Trust? Don't Break Any of These 4 Links in the Chain of Credibility. There are four links in the chain of credibility. If one of them breaks, your credibility is broken — or was never secured in the first place. Previous Article Is Your Airbnb Watching You? Hosts and Guests Often Clash Over Security Cameras Next Article Grubhub's Second CEO in Two Years Steps Down, Will Exit By May