Mingyi Zhao

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Moving Target Defense techniques have been proposed to increase uncertainty and apparent complexity for attackers. When more than one Moving Target Defense techniques are effective to limit opportunities of an attack, it is required to compare these techniques and select the best defense choice. In this paper, we propose a three-layer model to evaluate and(More)
Hypoxic-ischemic encephalopathy (HIE) is one of the leading causes of morbidity and mortality in neonates. Because of high concentrations of sensitive immature cells, metal-catalyzed free radicals, non-saturated fatty acids, and low concentrations of antioxidant enzymes, the brain requires high levels of oxygen supply and is, thus, extremely sensitive to(More)
White hats are making significant contributions to cybersecurity by submitting vulnerability discovery reports to public vulnerability disclosure programs and company-initiated vulnerability reward programs. In this paper, we study white hat behaviors by analyzing a 3.5-year dataset which documents the contributions of 3254 white hats and their submitted(More)
For decades buffer overflows have been one of the most prevalent and dangerous software vulnerabilities. Although many techniques have been proposed to address the problem, they mostly introduce a very high overhead while others assume the availability of a separate system to pinpoint attacks or provide detailed traces for defense generation, which is very(More)
In recent years, many organizations have established bounty programs that attract white hat hackers who contribute vulnerability reports of web systems. In this paper, we collect publicly available data of two representative web vulnerability discovery ecosystems (Wooyun and HackerOne) and study their characteristics, trajectory, and impact. We find that(More)
—Buffer over-read vulnerabilities (e.g., Heartbleed) can lead to serious information leakage and monetary lost. Most of previous approaches focus on buffer overflow (i.e., over-write), which are either infeasible (e.g., canary) or impractical (e.g., bounds checking) in dealing with over-read vulnerabilities. As an emerging type of vulnerability, people need(More)
Hyponatremia, defined as a nonartifactual serum sodium level <135 mmol/L, is the most common fluid and electrolyte abnormality in clinical practice. Traditional managements (fluid restriction, hypertonic saline and loop diuretics, etc.) are difficult to maintain or ineffective. Recently, vasopressin receptor antagonists (VRAs) have shown promise for the(More)