Every year, cybercriminals circle dates like Black Friday, Cyber Monday, and the pre-Christmas rush in red on their calendars.
According to analysis from Darktrace, in 2024 Black Friday–themed phishing emails surged by almost 700% in the weeks leading up to the November holiday. During peak shopping periods like Christmas, phishing attacks on major US retail brands shot up by over 2,000%.
For marketers and ecommerce teams, the rise in holiday phishing scams has two consequences: your audience is more likely than ever to be targeted by convincing fake emails, and your own legitimate campaigns are competing with a lot of dangerous noise in the inbox. If customers get burned by a “sale” email that steals their card details, they might not trust yours next time, even if you did everything right.
This article explains why phishing surges so dramatically around big retail events like holidays, what red flags to watch for, and practical steps marketing and communications teams can take to keep both customers and colleagues safe. We’ll also look at how email authentication protocols like SPF, DKIM, and DMARC help keep your brand’s domain out of attackers’ hands.
From a criminal’s point of view, seasonal events create the perfect conditions for social engineering. People expect floods of discount emails, shipping notifications, and “one-day only” offers. Everyone is moving fast, scanning subject lines, and clicking before thinking. That’s exactly the behavior phishers want.
Spikes appear all year long: Christmas, Valentine’s Day, tax season, back-to-school, and major travel periods. Any time your customers are expecting more email than usual, attackers ramp up their efforts to blend in with the crowd.
Holiday-themed phishing isn’t always sophisticated on the technical side, but it’s very smart about psychology. Attackers tune their messages to match what people already expect to see in their inbox:
For busy customers skimming dozens of offers, these messages feel normal. The logos look right, the tone sounds like a real brand, and the timing lines up with their shopping behavior. That’s why education and process matter just as much as technical controls.
For marketers, phishing emails and domain abuse can hurt key metrics like sender reputation and email deliverability rates.
Marketing is about protecting the trust behind your brand, so during high-risk seasons like Black Friday, there are concrete actions your team can take to keep that trust intact.
Attackers rely on confusion. The more your real campaigns look like everything else in the inbox, the easier it is for a fake to slip through. You can help your audience by being intentionally consistent:
One smart move ahead of peak season would be to tell your customers what your legitimate emails will look like, and what you’ll never ask for via email (passwords, full card details, etc.). That makes it easier for them to distrust anything that falls outside those boundaries.
Rather than publishing a single “security tips” page on your blog and hoping people see it, weave small reminders into your existing customer journeys:
These micro-nudges help customers build better habits without slowing them down too much, and they underline that you take security seriously.
Holiday phishing doesn’t just target your customers; it also targets your own staff and agencies. A compromised marketing or ecommerce account can send thousands of malicious emails that appear to come directly from your brand.
If you’re working with agencies or external freelancers, make sure they follow the same security standards.
Even with great education and processes, you still need technical barriers that stop cybercriminals from sending emails using your domain in the first place. That’s where SPF, DKIM, and DMARC come in.
Together, these controls make it much harder for attackers to send convincing phishing emails “from” your brand. If you’d like a refresher, see our guide DMARC vs. DKIM vs. SPF: What’s the Difference?.
For a step-by-step overview of enabling DMARC specifically, you can also read our DMARC enablement guide.
Once you’ve implemented DMARC, the real work begins: monitoring who’s sending on your behalf, spotting new spoofing attempts, and safely tightening your policy from “monitor” to “reject," especially around busy retail periods.
DMARCeye makes that manageable by turning complex XML reports into clear, visual, human-readable insights. You can:
With DMARCeye, you'll have real visibility into how your domain is being used (or abused).
Get a free trial of DMARCeye today and start protecting your email domain before the next big shopping surge.
For more information on what you can do to secure your email domain, see our comprehensive email security guide.