Dataverse - Login from IP in the block list

Original query, unchanged.

// Use static IP address or CIDR list specified in the
// NetworkAddresses watchlist (from watchlist template)
// with tag "BlockDataverse"
let query_frequency = 1h;
let blocked_networks = MSBizAppsNetworkAddresses()
    | where Tags has "BlockDataverse"
    | summarize by IPSubnet;
let watchlist_entries_count = toscalar (blocked_networks
    | summarize count());
DataverseActivity
| where watchlist_entries_count > 0
| where TimeGenerated >= ago(query_frequency)
| where Message == "UserSignIn" and isnotempty(ClientIp)
| summarize FirstEvent = arg_min(TimeGenerated, *) by UserId, ClientIp, InstanceUrl
| evaluate ipv4_lookup(blocked_networks, ClientIp, IPSubnet)
| extend
    CloudAppId = int(32780),
    AccountName = tostring(split(UserId, '@')[0]),
    UPNSuffix = tostring(split(UserId, '@')[1])
| project
    FirstEvent,
    UserId,
    ClientIp,
    Message,
    InstanceUrl,
    CloudAppId,
    AccountName,
    UPNSuffix