获取安全概览信息

{
    "success": true,
    "overview": {
        "daily_attack_events_count": 0,
        "weekly_attack_events_count": 0,
        "top1_most_related_ipv4_address_by_weekly": 0,
        "top1_most_related_ipv4_block_by_weekly": 0
    }
}