Exhibit 31.3
CERTIFICATION
I, Todd Brooks, certify that:
| 1. | I have reviewed this annual report on Form 10-K/A for the fiscal year ended December 31, 2017 of FalconStor Software, Inc.; |
| 2. | Based on my knowledge, this report does not contain any untrue statement of a material fact or omit to state a material fact necessary to make the statements made, in light of the circumstances under which such statements were made, not misleading with respect to the period covered by this report; |
| Date: April 30, 2018 | /s/ Todd Brooks |
| Todd Brooks | |
| President and Chief Executive Officer | |
| (principal executive officer) |