sql server eka internet ekata open da ?
sql server port eka (1433) local network eken witharak access karanna puluwan widiyata hadanna.
Malware & botnets tiyenawa sql server port & RDP port (3389) scan karala ewa open nam attack karana.
Server properties > security > login auditing > both failed and successful
enable karala server log eken balanna log wena IP, user change karana IP monawada kiyala