Skeleton crews, delayed responses, and distracted staff make the holiday period prime time for attacks. Here's what to watch for.
Every year we see the same pattern. Organisations wind down for Christmas, SOC coverage drops to skeleton crew, and threat actors take advantage. The period between Christmas Eve and New Year is consistently one of the highest-risk windows of the year.
This isn't speculation. It's documented. SolarWinds was discovered over Christmas 2020. The Log4j chaos peaked mid-December 2021. Ransomware operators deliberately time attacks for holiday weekends when response capability is lowest.
High-Risk Period: 23 Dec - 2 Jan This window sees the highest concentration of successful attacks due to reduced staffing, delayed patching, and slower incident response times.
SOCs running on 20-30% capacity. Alerts get missed or deprioritised until "after the break."
Key personnel unreachable. Escalation paths that work in November fail in December.
No patching over holidays means vulnerabilities disclosed on Dec 20th wait until January.
"Your parcel couldn't be delivered" phishing spikes. Staff expecting deliveries click more.
He sees you when you're sleeping, he knows when you're awake... and so do threat actors. Keep watching.
Operators often gain access weeks before deployment. They wait for the right moment: Friday evening of a bank holiday weekend, or Christmas Eve. By the time anyone notices, they've had days to encrypt everything.
Large data transfers that would trigger alerts in normal times get lost in reduced monitoring. An attacker exfiltrating gigabytes on December 27th has better odds of going unnoticed.
Even if the main attack waits until January, the holiday period is perfect for establishing backdoors: new accounts, remote access tools, C2 infrastructure. All while no one's watching.
Run through this before the break:
| Monitor | Why |
|---|---|
| Authentication logs | Logins from unusual locations, times, or accounts |
| Privileged activity | Any domain admin activity over Christmas should be verified |
| Backup integrity | Confirm backups complete and aren't being tampered with |
| Alert thresholds | Lower them. Better false positives than missed incidents |
This is where automated security validation proves its value. When human oversight is reduced, having systems that continuously test your defences becomes critical.
The AETOS platform runs attack simulations against your environment on your schedule, including over holidays when your team can't. If something changes, if a control fails, if a new exposure appears, you'll know about it even when the office is empty.
AETOS provides continuous security validation, even when your team is on holiday. Automated attack simulations run 24/7, alerting you to exposures before attackers find them.
One monthly plan, one front door: penetration testing, Cyber Essentials, AI security, training and advice, from £1,500 a month. No hidden costs.
