On January 29, 2013, Tom Cooper, the Proofpoint, Inc.'s Executive Vice President, Worldwide Field Operations, notified the company that he intends to retire. Mr. Cooper is expected to continue to serve the company in his current capacity while the company conducts its search for his replacement.

For the first quarter of 2013, the company expects total revenue to be in the range of $29.3 million to $29.5 million, adjusted EBITDA loss to be in the range of $2.8 million to $2.5 million, Non-GAAP EPS loss to be in the range of $0.13 and $0.12.

For the full year of 2013, the company expects total revenue to be in the range of $126.0 million to $128.0 million, adjusted EBITDA loss to be in the range of $4.8 million and $4.5 million. Non-GAAP EPS loss to be in the range of $0.36 and $0.35. Free cash flow, defined as operating cash flow less capital expenditure, is expected to be approximately positive $5.0 million, which assumes capital expenditures of $7.0 million to $8.0 million.