哪里的账号异常告警 体验好

import datetime

class AccountMonitor:
    def __init__(self, user_id):
        self.user_id = user_id
        self.login_history = []

    def log_login(self, ip_address, device):
        now = datetime.datetime.now()
        self.login_history.append({
            'time': now,
            'ip': ip_address,
            'device': device
        })

    def check_anomaly(self):
        if len(self.login_history) < 2:
            return False
        
        last_login = self.login_history[-1]
        second_last_login = self.login_history[-2]
        
        time_diff = last_login['time'] - second_last_login['time']
        ip_diff = last_login['ip'] != second_last_login['ip']
        device_diff = last_login['device'] != second_last_login['device']
        
        if time_diff < datetime.timedelta(minutes=5) and ip_diff and device_diff:
            return True
        
        return False

# 使用示例
monitor = AccountMonitor(user_id=123)
monitor.log_login(ip_address='192.168.1.1', device='Laptop')
monitor.log_login(ip_address='192.168.1.2', device='Mobile')

if monitor.check_anomaly():
    print("账号异常告警触发！")
else:
    print("账号行为正常。")