Risk Management Lessons from Nolan's The Odyssey: Unmasking the "Trojan Horse" That Targets E-Commerce Businesses

The impregnable city fell not from the outside, but from within

Christopher Nolan's new film The Odyssey, starring Matt Damon, is currently a box-office hit. Beyond its breathtaking visuals, shot entirely in IMAX, the story is set against a Greek myth most of us already know well: the Trojan horse.

For ten years, the fortified city of Troy withstood every assault the Greek army could mount. Yet the Trojans came to believe that the giant wooden horse their enemy left behind was a valuable gift, and they pulled it inside their walls with their own hands. The soldiers hidden inside opened the city gates, and Troy fell in a single night.

In fact, modern enterprise e-commerce, especially systems built on SaaS platforms, faces a risk with exactly the same structure.

The blind spot created by assuming "it's SaaS, so it's safe"

SaaS platforms such as Shopify have become the standard choice for building e-commerce sites. They run on robust infrastructure and are designed so that merchants never have to hold credit card data on their own systems. Breaking through Shopify's servers head-on to steal card details or personal information is not a realistic attack.

To borrow from the myth, Shopify is "the latest and strongest city wall, one that cannot be breached from the outside." But no matter how strong the wall, if the people running the site bring something dangerous inside with their own hands, the damage spreads from there.

Cyber attackers know that frontal assaults don't work. So they have shifted their tactics, using a "modern Trojan horse" to get operators to open the gates themselves.

What the "Trojan horse" hiding in today's e-commerce sites really is

In e-commerce operations, this "horse" is typically carried into a site in one of two forms.

1. Themes (design templates) of unknown origin obtained outside the official store

On unofficial overseas forums and elsewhere, high-quality themes that normally require payment are sometimes distributed for free (so-called "nulled" themes).

Teams keep downloading and applying these unofficial themes on a whim: to save a few tens of dollars, or to skip a tedious internal purchasing or expense approval process. But deep inside that code, malicious scripts (backdoors) may be hidden.

If, in exchange for a small saving or a skipped procedure, hidden code running on the storefront leaks form inputs and customer data, or redirects shoppers to fraudulent sites, the result is a disaster: lost trust and enormous damage to the business.

2. The structural risk of third-party apps installed through the official app store

In enterprise e-commerce, the more fundamental issue to watch is how apps are structured. It is tempting to think, "It passed the official app store review, so it's safe." That is exactly where the structural blind spot lies.

To be clear, Shopify does not stop at the initial review. It continues to check apps regularly from multiple angles. It also has mechanisms to detect and notify merchants of signs of suspicious data access by an app, and in real-world operations, merchants do sometimes receive security alerts saying "there was an attempt at suspicious data retrieval." The platform's monitoring is extremely strong.

Structurally, however, one fact does not change: the servers and databases that run an app are managed by the third-party company that provides it.

Installing a convenient external app on your store means granting that third-party company's servers access (via API) to your own customer and order data. If the partner's servers are ever compromised, your e-commerce platform itself may remain secure, but the sensitive data that the app held or retrieved within its granted permissions can still leak.

A perspective: an app's "price" and the investment behind its security

Here is one important insight for choosing apps.

On the Shopify App Store, apps offering similar functionality range widely in price, from bargain options at $1 a month to ones costing several hundred dollars a month. Whether a given price is reasonable varies by app, but the question to ask is whether the vendor can afford to spend enough on security.

Obtaining and maintaining third-party certifications, training staff on security, adopting ID and password management tools, building log monitoring: all of these cost money.

Setting aside exceptions, such as apps backed by another line of business and not aimed at generating profit on their own (for example, the position our own "Mypage Blocks" holds), can a developer that still has few users, has yet to benefit from economies of scale, and charges only extremely low prices really maintain an adequate security management system?

Choosing an app simply because its monthly fee is low can mean bringing the latent risk of a vendor's underinvestment in security straight into your own store.

This is not a weakness unique to Shopify. It is a challenge shared across SaaS ecosystems

This risk is by no means limited to Shopify.

Salesforce Commerce Cloud (SFCC), often compared with Shopify in the enterprise space, has its own ecosystem, AppExchange, with strict review criteria. But as long as functionality is extended by connecting to external vendors' servers, the platform cannot take full responsibility for the third party's infrastructure and data management.

In other words, unless you build everything yourself from scratch, the structural risk that comes with granting third parties access to your data is an unavoidable premise of modern e-commerce.

Establishing governance: what management and IT/operations teams need to do

If fear of risk leads you to use no external apps or themes at all, you give up the greatest advantages of SaaS: extensibility and speed.

What matters is not leaving security entirely to the system, but having the managers who direct the work, together with IT and e-commerce operations teams, establish the following governance.

• Define purchasing and development policies that strictly prohibit unofficial themes and code of unclear origin
• Build an evaluation flow that scrutinizes which data an app requests access to when it is installed
• Don't decide on price alone: check a third-party vendor's security posture and reliability in advance
• Reliably revoke the permissions (API access keys) of apps you no longer need, and audit your apps regularly

From the victors' side, the Trojan horse is a symbol of cunning strategy. Yet the film also invites us to read the guilt of conscience behind that victory, and the question of whether we should simply call the winner a hero. From that perspective, Troy's tragedy cannot be dismissed merely as a lack of caution on the part of those who let the horse in.

In modern e-commerce, too, it goes without saying that responsibility lies with attackers who exploit trust. Even so, companies entrusted with customer information are expected to be prepared to protect that trust. However solid the walls (the platform) your business stands on, without eyes that check "what we are bringing inside, and why," risk will always arise from within. The role of governance is to make those eyes part of the organization's review and approval process, rather than relying on the attentiveness of individual staff.

Closing thoughts

Like the cunning Odysseus displays in the film, risk in today's cyberspace does not come through a frontal breach. It exploits gaps in human psychology and in structure: our desire for convenience, ease, and low cost.

When selecting a new app or theme, we tend to focus only on functionality: "Does it have the features we need?" "Does it meet our requirements?" But however capable a product is, if non-functional requirements such as security and operational governance are overlooked, it can end up undermining the very business it was meant to support.

To grow a business while enjoying the extensibility and development speed that SaaS offers, you need not only to meet functional requirements but also to tighten your grip on operational processes, including the non-functional perspective. That is the true risk management e-commerce businesses need from here on.

Image credits

• Giovanni Domenico Tiepolo, The Procession of the Trojan Horse into Troy, c. 1760, The National Gallery, London. Public domain (Wikimedia Commons)
• Giovanni Domenico Tiepolo, The Building of the Trojan Horse, c. 1773–1774, Wadsworth Atheneum Museum of Art. Public domain (Wikimedia Commons)