We are seeing the same. 100 per hour for a week. Before we caught it, our Checkout Abandon open rates collapsed completely as a big batch got sent emails.
There are 3 types:
Those with address: House Number 43, Gray Colony, Bellevue Washington
Those with address: 23, Scottsdale, Happytown
Those with no address.
Almost all of them have an email format that includes 1-2 common names (first or last), and 3 numeric digits in various combinations. eg: smith.sanchez326@gmail.com, allen353taylor@yahoo.com
Shopify Plus support told us they could not do much about it, that we should contract with a bot blocking app, but here’s the reply we got from the best one our developer could recommend:
Our experts have reviewed your order and abandoned cart records, and we have confirmed that a bot is accessing your store. However, unlike typical bots, this one doesn’t need to access your product pages and can directly enter the checkout through links like the one below:
Since Shopify does not allow any app to run on the checkout page, apps like ours, which block IPs and countries, can only run within the Shopify system (on Shopify pages), by the time the bot reaches Shopify, it’s too late to block them. You will need to install some WAF (Web Application Firewall) tools (such as Cloudflare or Sucuri, these are not Shopify Apps). These tools are can intercept the bot requests before they reach Shopify, , and in theory, they can block any malicious access you want to intercept. Only such tools can work.
If the only reason you installed our app is to block this bot, you may consider uninstalling our app, and choose a WAF product to resolve the issues your store is currently facing. If you encounter any issues related to blocking visitors or even with the WAF in the future, feel free to contact us anytime.
Haven’t explored what a WAF is or how to install it yet…
Very disappointing that Shopify Plus doesn’t make this an SOP.