There could be a corporate executive as one of the main characters if the novel is about a breach in a business deal. This person would be dealing with the fallout, trying to salvage the company's reputation and financial situation. There might also be a whistleblower in the story who exposed the breach, adding another layer of conflict as the company tries to discredit them.
Perhaps the main character is an ordinary person who accidentally stumbles upon a breach of some kind. For example, a young journalist who discovers a breach in a political cover - up. They then have to decide whether to report it and face the potential danger from those who want to keep the breach hidden, or stay silent and live with the knowledge.