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Yahoo disclosed Wednesday a breach involving more than 1 billion users took place in August 2013. The company revealed the accounts including birthdates, emails, phone numbers, encrypted and unencrypted security questions may have been stolen by hackers in August 2013.

The company has not been able to determine how the data was stolen. Yahoo’s chief information security officer, wrote in a post announcing the hack, “We have not been able to identify the intrusion associated with this theft.”

This is a separate incident from the September revelation of at least 500 million user accounts compromised. This new attack could represent the largest hack of all time, and news of the breach dropped shares in after-hours trading about 2.5%. Yahoo is notifying the account users and will require them to change their passwords. The announcement could also have implications on the sale of Yahoo to Verizon for $4.8 billion, which has not yet been completed. Verizon has since said that it considers the hack a material event that may affect the terms and conditions of the acquisition. “As we’ve said all along, we will evaluate the situation as Yahoo continues its investigation,” a Verizon spokesperson told CNBC on Wednesday. “We will review the impact of this new development before reaching any final conclusions.”

As we are reminded again, your stolen data is in and of itself a valuable commodity and needs to be protected.  Lifelock is a industry leader in Identity Theft Protection and helps protect its 4 million members by searching over a trillion data points every day for potential threats.

Do you have a Yahoo Account?  Are you now worried about your data being compromised, stolen and resold?  Even if you don’t have a Yahoo account but are wise enough to be proactive against the next data breach, Identity Theft protection is for you.   You can sign up right now for LifeLock Identity Theft services by using the LifeLock promo code:  LLC1030 and receive 10% off your membership as well as enjoy a 30 day Risk Free* trial of their services.

LifeLock Codes is an independent company that provides consumers with several of the best LifeLock promo codes available.

No one can prevent all identity theft

† LifeLock does not monitor all transactions at all businesses.

‡‡ Phone alerts made during normal local business hours.

‡ Reimbursement and Expense Compensation, each with limits of up to $25,000 for Standard, up to $100,000 for Advantage and up to $1 million for Ultimate Plus. And up to $1 million for coverage for lawyers and experts if needed, for all plans. Benefits provided by Master Policy issued by United Specialty Insurance Company, Inc. (State National Insurance Company, Inc. for NY State members). Policy terms, conditions and exclusions at: LifeLock.com/legal

The credit scores provided are VantageScore 3.0 credit scores based on data from Equifax, Experian and TransUnion respectively. Any one bureau VantageScore mentioned is based on Equifax data only. Third parties use many different types of credit scores and are likely to use a different type of credit score to assess your creditworthiness.

1 Credit reports, scores and credit monitoring may require an additional verification process and credit services will be withheld until such process is complete.

2 For LifeLock Ultimate Plus™ three bureau credit monitoring, credit monitoring from Experian and TransUnion will take several days to begin.

*Important Pricing & Subscription Details:

◦ By subscribing, you are purchasing a recurring membership that begins when your purchase is completed and will automatically renew after your first paid term.

◦ The price quoted today may include an introductory offer. Depending on your selection, your membership will automatically renew and be billed at the applicable monthly or annual renewal price found here. The price is subject to change, but we will always notify you in advance. This offer not combinable with other offers.

◦ The credit reports, scores, and credit monitoring features may require an additional verification process and credit services will be withheld until such process is complete.

◦ You can cancel your membership at any time here, or by contacting Member Services at: 844-488-4540. If you are an annual member and request a refund within 60-days after being billed, you are entitled to a complete refund. Otherwise, you are eligible for a pro-rated refund on any unused months through the end of your term. For more details, please visit the LifeLock Refund Policy.

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