It’s not easy being royalty. Just ask the Duke and Duchess of Sussex. When Prince Harry and Meghan Markle announced in January that they’d be stepping back from their royal duties, working towards financial independence and moving to Canada—yes, Canada—the world recoiled at the upheaval shaking the usually staid House of Windsor.

With the royals in crisis over Harry’s snubbing of his monarchical calling—this despite the fact that he’s currently sixth in the line of succession and has no real chance of becoming king—the Queen struck a deal with her grandson that saw him lose several peerages and official titles in return for a life of (relative) freedom in B.C. Then came the next question: who would pay for the Sussexes’ security?

That’s a delicate topic and a political minefield that the British and Canadian governments have been attempting to tiptoe through without causing public uproar. Just last week it was announced that the RCMP would cease providing security to the couple in the coming weeks, the assumption being that they, or the British government, would now be picking up the tab.

One question I’ve been asked of late is an interesting one: What, exactly, does it take to protect a prince? And estimate that Prince Harry’s security could cost in the millions of dollars accurate? While I don’t have any insider knowledge on the topic—and nor should we speculate on the security measures that would be undertaken to protect the Sussexes while in Canada—we can look at the tactics that would be used to protect any VIP or high-net-worth individual whose family could be vulnerable to privacy intrusions or, worse, threats to their safety.

To start that process, a private security firm that specializes in protection for high-profile individuals would be called in to conduct a comprehensive risk assessment. Verifiable threats against the family’s safety would be taken with the utmost seriousness. Security specialists would monitor inbound communications by phone or email, as well as social media activity, for hints of potential criminal threats on the horizon. They would then draft that aforementioned security strategy taking into account those potential risks and implementing tactics to proactively mitigate each one.

As part of that risk assessment, a security team would sweep the VIP’s property (once a suitable one was located, of course) to analyze any and all points of vulnerability—including by air, land and water. They would work to lock down any potential access points (the property could potentially be fenced) and highlight weaknesses. A security detail would patrol the grounds as needed.

Any VIP’s home would undoubtedly be equipped with a very high-tech camera system. This would likely include facial recognition software and would be monitored 24/7 by a security detail stationed somewhere on the property or very nearby. Non-celebrity VIPs might rely on remote monitoring instead. Every window in the home would be equipped with glass break sensors and could even be retrofitted with bullet-proof glass. In the case of the Royals, RCMP or British authorities would determine the necessity of the latter feature based on their initial security assessment.

Inside the home, officials would work to make security measures as inconspicuous and unobtrusive as possible. One common feature of luxury homes for the very wealthy or famous are panic rooms—a space where VIPs can take shelter in the event of a home invasion. The trend nowadays is moving away from dedicated panic rooms to a specific functional room in the house, such as a master bedroom, that can be locked down in an emergency. Whatever the proscribed solution, most VIP families would likely have a reinforced space with full communications—and possibly even a dedicated air supply—that could serve as a mini-fortress in the event of a threat such as a home invasion, an attack or a kidnapping attempt. The likelihood of any of those scenarios playing out is slim, but security officials don’t take chances with the safety of their high-profile charges.

Because very wealthy people tend to jet-set and home-hop on a regular basis, they often have only a relatively short list of property options limited to homes with suitable security infrastructure.

A last point on the cost to protect a VIP couple, especially one as high-profile as Harry and Meghan: Initial estimates that the Sussexes’ annual security expenses are in the high six figures are likely understated. If the couple are engaged in public events while in Canada, the cost for their protection could easily climb to more than $1 million per year. Simply having round-the-clock protection involving multiple security professionals can be extraordinarily expensive, let alone the cost to secure venues at official engagements.

Living the high-net-worth or celebrity life isn’t cheap, especially when you’re two of the most famous faces on the planet. Who foots the bill for Harry and Meghan’s security while in Canada remains uncertain, but let’s all hope the Queen is picking up part of the tab—this one could get expensive.

Winston Stewart, President and CEO