You can try Dehashed (Paid, only a few bucks) and Holehe (Free. If you don't want to install it, use it through epieos.com). Source: over 1 year ago

After further looking it seems similar to https://dehashed.com. Source: over 1 year ago

I'm sorry this happened to you, but don't be so surprised. Phishing and MITM attacks are alive and well, and 2-FA is just a bandaid for bad password practices. You might do well to check on dehashed.com for your own credentials. Source: over 1 year ago

2 useful resources are: dehashed.com and https://github.com/hmaverickadams/breach-parse from heath adams. Keep in mind that it is not a good idea to use these in an unethical way. Doing illegal stuff can and will get you in trouble. Source: over 1 year ago

Agree with this! Sites like Dehashed will let you search for breached usernames and have relatively cheap options for a week’s worth of access. Source: almost 2 years ago

Cisco Umbrella | Leader in Cloud Cybersecurity and SASE Solutions. Source: about 1 year ago

A combination of subscription ip blocklists like that sold by MaxMind combined with DNS and application filtering services like Umbrella would catch most services. For good measure I'd toss in local .exe application whitelisting running on each of the schools machines to only allow the applications the school wants using something like applocker which is included in windows so it probably fits into their budget. Source: over 1 year ago

We've been very happy with Cisco's Umbrella product. A few years back I "test drove" the free version, but thats a very poor substitute for the paid product. It's not cheap, but it has worked very well for us. Over 70% of our users are remote since the start of COVID, so we opted for the "roaming client" installation on every endpoint. We have a "basic" network profile for our office locations that slightly... Source: over 1 year ago