Two stories of online account break-ins this week: First, Twitter.com got redirected to an Iranian hacker page because attackers were able to get into the email account registered with their site DNS service. Second, savvy blogger Amit Agarwal’s Gmail and Google Apps accounts were taken over because the attacker got access to Amit’s secondary email address and sent a password change request there to get into the accounts. Do yourself a favor: Before 2010 is upon us, do a quick audit of all your most important accounts. Make sure your passwords are strong and remember: Never use inactive webmail as your secondary email account.